How can you convert a galvanometer into an ammeter and a voltmeter? A PMMC galvanometer of 60 resistance reads up to 60 mA. Determine the value of the resistance (i) when connected in parallel to enable the instrument to read up to 1.20 A and (ii) when connected in series to enable it to read 12 V.

How can you convert a galvanometer into an ammeter and a voltmeter? A PMMC galvanometer of 60 resistance reads up to 60 mA. Determine the value of the resistance (i) when connected in parallel to enable the instrument to read up to 1.20 A and (ii) when connected in series to enable it to read 12 V.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter29: Dc Generators

Section: Chapter Questions

Problem 1PA: You are working as an electrician in a large steel manufacturing plant, and you are in the process...

See similar textbooks

Related questions

Q: How does the shape of wires carrying current affect the shape of the magnetic field created?

A: Magnetic field: The expression field of force connected to shifting electric fields, such as when…

Q: In the given circuit, find the current in the 12 Q resistor. 6 ohm 12V 4 ohm 8 ohm 12 ohm

Q: phon with - length and is terminated in Br = Zo. At the sending is driven by a generator which has a…

A: Given data, Vg=10 Vf =1kHZZg=500 ohmZs=Z0=683-j138 ohmγ = 0.0074+j0.0356/ km

Q: The output modules cannot handle as much current per output The input modules cannot handle as much…

Q: 4 Find the F.T. of the following Signals using <-2 d 2 +t Ans differentiation prop. 2 F(w) = 4 (sin…

A: Writing the mathematical expression. ft=2ut+2-rt+2+2rt-2ut-2-rt-2Taking differentiation w.r.t.…

Q: 2. x[n] = cos ¹n 4

Q: T lines are designed for Digital data how they can be used for Analog Transmission?

A: Digital Transmission of analog information is possible if a minimum level of signal to noise is…

Q: 1-14. (a) Write the Voi expression by inspection and solve for Vol using a voltage divider. Write…

A: Given circuit,

Q: Given the AM voltage equation. Determine the carrier voltage and frequency, the modulating voltage…

A: Given: VAM=310 cos (6,540,000 t)+650 sin (6,600,000 t) - 310 cos (6,660,000 t) Volts To do:…

Q: . Use ideal diode model 1st approximation to find the current flowing through resistor in the…

A: The given circuit is, Use ideal diode model 1st approximation.

Q: 4- A system with a dynamic equation: The input matrix is 2x(t) + 10X(t) = 3u(t) ----------- and the…

A: Given, 2X...t+10X..t=3ut Here, we have to find the input matrix and poles of a system.

Q: 18–12 Use the duality property to find the inverse transforms of the following functions: a. F₁(0)…

A: Since you have posted the all different questions so we are supposed to answer the 1st one.

Q: The core of an electro-magnetic structure is Laminated in order to: reduce the Stacking Factor…

A: Core of the transformer:- The core is constructed of numerous thin strips of grain-oriented silicon…

Q: For the system shown in Fig. 1, the system has a transmission line of unknown length and unknown…

A: The output impedance, or opposition to current flow, refers to the impedance of the component that…

Q: A business uses two 3 kW fires for an average of 20 hours each per week, and six 150W lights for 30…

A: According to the question, following data is given Power P1 = 3 kW Time T1= 20 hours Power P2 = 150…

Q: Example 2.7: Fig. 2.6 shows a motor and load combination. The motor is a permanent magnet DC motor.…

A: The given figure is shown below. This is a DC armature controlled permanent magnet motor. We need…

Q: 5. Find Vo. 34 Μ 16Ω ΤΩ ΤΩ ΑΜΕ ΤΩ 12V 109

Q: The speed control of an AC motor can be achieved by using 2 common types of drive circuit, namely…

Q: 16V +1 Μ ΖΩ | 4Η

A: Given data, Circuit diagram is given as,

Q: 4. Calculate Vout where RO 10kQ, R1 = 5kΩ, R2 = 4kΩ, R3 = 2kQ2, Rf = 50kQ, VO = 5V, V1 = 2V, V2 = 8V…

A: Assume opamp is ideal , for ideal opamp current into opamp terminal is zero and voltage at inverting…

Q: 3. Given a system with input x(t) = u(t) and impulse response h(t) shown below. Determine: a) The…

A: Convolution is a mathematical operator.It is used to evaluate response of LTI system.It combine two…

Q: 6. If the rms current through a 4.7 kn resistor is 4 mA, the peak voltage drop across the resistor…

A: According to Ohm's law, V=I*R V=potential difference between two terminals I= current flowing…

Q: 2 A 4 V + 12 V Find the power absorbed or supplied by element 3 in Figure shown below. 12 V 2Vx 12 A…

Q: In a 1-phase transformer of 20 KVA, 2000/200 volts, the iron and copper losses are 400 W and 500 W…

Q: 2. A 70-Vac source has the following waveform. Determine: a. Vpk b. C. Vrms d. Period Vpk-pk e.…

A: The RMS value of the source is given as 70V and the half cycle duration is given as 50ms. The…

Q: 24 The following data were obtained on a 20 kVA, 50 Hz, 2000/200 V Transformer: SCT: 60 V, 10 A, 300…

A: Given data: Vsc=60 VIsc= 10 APsc=300 W Short circuit test is conducted on HV side. Reh=PscIsc2…

Q: The term pipelining refers to a technique of decomposing a sequential process Explain the structure…

A: Pipelining is a method of breaking down a sequential process into smaller processes, each of which…

Q: Consider the circuit below containing two identical, p-n junction diodes D₁ and D₂: 2 ks2 www 5 V-…

A: Given, Threshold voltage VT=0.7V Ambient temperature=300K Reverse saturation current= IS=5μA Here,…

Q: QUESTION 7 With reference to PLC discrete output modules: What types of fi eld output devices are…

Q: 1-5. Minimize the function F = X+X+Y+XY

Q: c. if f(w) = f(x)e-izda, find the Fourier Transform of f(z) Jezix f(x) = 0 if -2<x<2 Otherwise

Q: 1. x(t) = cos (t +)

Q: The Copper and Core losses of a 400 kVA transformer at various loads are as given below: Load (kVA)…

A: Given 400kVA transformer Full load(400kVA) copper losses = 1200W Copper losses at 200kVA loading = ?

Q: Given a system with input x(t) and impulse response h(t) given by: x(t) = u(t) , h(t) = u(t) . Let…

Q: T lines are designed for Digital data how they can be used for Analog Transmission?

A: Digital Transmission of analog information is possible if a minimum level of signal to noise is…

Q: Determine whether the following signals are energy, power, or neither energy nor power.

Q: QUESTION 15 Compare the memory storage characteristics of volatile and nonvolatile memory elements.…

A: To do: We have to compare the Volatile and Non volatile memory for given points and to check…

Q: 14. Find the currents in all the resistors in the circuit shown in Fig. 2.9-14 by applying…

Q: A wave wound d.c. generator has 4 poles and the armature has 756 conductors. How fast should the…

Q: F', (S) (2) a-Find a transfer function G(s) = V (s) the output. of the circuit shown below, where is…

A: Transfer function is ratio of laplace transform of output to laplace transform of input, keeping…

Q: A 1000 KVA transformer has a reactance of 5%. Its reactance at 2000 kVA base is (iv) 10% (1) 5% (ii)…

A: Given: Rated kVA = 1000 kVA. Percentage reactance at rated kVA, %X=5 %. Base kVA = 2000 kVA.

Q: - V₁ 7 √√3+√√₂ =0 - (20) 1₂a + (65) Fon + (7) ₁₂ = 0 20 -62 F.A 7.02 -212 +61 + 710 =0 @ + Uke…

A: Given:

Q: P4) Find the unknown current 12 Ω Μ 3 Ω ww 24 V + 6Ω 1 + 15 V

A: Given, The circuit is,

Q: on 9 What is the modulation index for AM waveform with Vmax = 8.4 V & Vmin = 4.7 V? 0.28

Q: For the Translational mechanical system shown below, draw the electrical analogous circuit and…

A: In the Given questions we need to calculate the transfer function of the system. This can be…

Q: 93- Find fourier Coefficient C for xen) x(n) = { 0.-2, 2, 1, 0, -2, 2,1-] x(n) =…

Q: Which resistors in the circuit must always have the same current? HH A www B C www D k

A: Given circuit:

Q: Three resistors are made of the same material, with sizes in mm shown below. Rank them in order of…

A: Given: Three resistor of same material with different size shown as, For same material resistivity…

Q: 2 A single phase transmission line having a resistance of 25 Q is connected to fixed sender voltage…

Q: Find the F.T. of the following Signals using differentiation prop. 2 d 2 : 4 (sin² (w) - 2 Sinc…

A: According to the Fourier transform's time differentiation property, a function's differentiation in…

Concept explainers

DC Generator

An electromechanical machine which converts input mechanical energy to respective output electric energy is called a generator.

Question

How can you convert a galvanometer into an ammeter and a voltmeter? A PMMC
galvanometer of 69 resistance reads up to 60 mA. Determine the value of the
resistance (i) when connected in parallel to enable the instrument to read up to
1.20 A and (ii) when connected in series to enable it to read 12 V.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.

Similar questions

14. A 6-V lead-acid battery has an A-hr rating of 180 A-hr. The battery is to be load-tested. What should be the test current, and what are the maximum permissible amount and duration of the voltage drop?
5. A digital voltmeter indicates a voltage of 2.5 V when 10 of current flow through a resistor. What is the resistance of the resistor?
A PMMC instrument has internal resistance of 0.8 kΩ and gives full scale deflection for 33 mA. The required resistance value of multiplier resistors for employing the meter as a multi range voltmeter for voltage range 75 V will be __________________ ohms. a. 226.47 b. -360.00 c. 1472.73 d. 93717.00
-If a voltmeter that is ideal is connected to measure the voltage across the 83.0-kΩ resistor, what is its reading? Enter the absolute value of the reading in units of V -If a voltmeter of resistance 1.00 MΩ is connected to measure the voltage across the 83.0-kΩ resistor, what is its reading? Enter the absolute value of the reading in units of V
Q21 A PMMC instrument gives 25 mA at full scale reading when a potential difference across its terminals is 32mV. Show that how it can be used (a) as an ammeter for the current measurement in the range of 0 –3 A (b) as a 0 – 510V range voltmeter for the voltage measurement. (c) find the multiplying factor of shunt and AND voltage amplification
find Vs, VLED1, VReq and Isa and Isb of figure 1 using the equivalent resistance of the parallel combination of the 3 resistors in figure 2. For LED 1 assume a voltage drop of 1.8V
1. A PMMC instrument has internal resistance of 1.7kΩ andgives full scale deflection for 50μA. Calculate the required resistance value of multiplier resistors for employing the meter as a multi range voltmeter for voltage ranges of 10V, 50V and 100V.
A rear-window defogger in a car consists of 13 resistive wires connected in parallel to a 12-v battery. Assume that the defogger can melt 2.1 x 10-2 kg of ice at 0C to liquid water at 0C in two minutes. Each wire has a length of 1.30m. What should the resistance/ length of the wires be? Your answer should be in ohms/m.
Solve the following Numerical problems a. What is the Output Voltage of a battery that expends 7.2J of energy in moving 1C of charge? b. A 50-ohm load dissipates 200W of power. How much is the voltage and current across the load? c. If one branch of a 120-V power line is protected by a fuse of 20-A. Will the fuse carry 10-Ohm load? d. If total resistance of a series circuit is 280-Ohm. If one of the resistance is 160-Ohm. What is the sum of other two resistances?
Figure P1.27 shows an ammeter (AM) and voltmeter (VM) connected to measure thecurrent and voltage, respectively, for circuit element A. When current actually enters the + terminalof the ammeter, the reading is positive, and when current leaves the + terminalreading is negative. If the actual voltage polarity is positive at the + terminal of the VM, thereading is positive; otherwise, it is negative. (Actually, for the connection shown, the ammeterreads the sum of the current in element A and the very small current taken by the voltmeter. Forpurposes of this problem, assume that the current taken by the voltmeter is negligible.) Find thepower for element A and state whether energy is being delivered to element A or taken from it if a. the ammeter reading is +2 A and the voltmeter reading is +30 V.b. the ammeter reading is -2 A and the voltmeter reading is - 30 V.c. the ammeter reading is -2 A and the voltmeter reading is + 30 V.
The circuits, P and Q, show two different ammeter-voltmeter methods of measuring resistance. Suppose the ammeter has a resistance of 0.10 ohms and the voltmeter has a resistance of 3.0 ohms; the ammeter reads 2.5 amps and the voltmeter reads 6.0 volts. What is the uncorrected value of the resistance in each case? What is the true value of the resistance in each case?
Given circuit, if the ideal ammeter and voltmeter are connected at the same time, what are the values measured by a. I1=? b. I2=? c. Vm=?