If a wire of resistance R is stretched uniformly so that itslength doubles, by what factor does the power dissipatedin the wire change, assuming it remains hooked up to thesame voltage source? Assume the wire’s volume and densityremain constant

Q: A 10-lb weight is suspended by a spring that is stretched 2 in. by the weight. Assume a resistance…

A: Given: Suspended weight (W) = 10 lb Stretch in spring (x) = 2 in. = 0.167 ft. Resistance (R) = 7.05…

Q: A galvanometer has a coil resistance of Rgalv=22.4⁢ Ω. It is to be made into a voltmeter with a…

A: For galvanometer to act as voltmeter. We need to add high resistance resistor in series with…

Q: battery with eng = oV and internal reelstance r=0,n D is vonneted to Hwo lighteulls as show n with…

A: given , e.m.f (e) = 9 V internal resistance , r = 0.4 Ω voltage of battery , V = 8 V  two…

Q: For a LR circuit, the current increased from 0 to 65% of it's max. value in 3.2 ms.  -What's the…

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Q: Derive the working differential equation for the given circuit, i(t)→ VR V(t) L

A: emf = E = 5V inductance = L =1 H resistance = R = 50 ohms

Q: :A galvanometer has an internal resistance of (RG = 4.5 Q), and a maximum deflection current of…

A: Given, IGmax = 0.02 A Imax= 100 mA = 100*10-3 A RG= 4.5 ohms

Q: The RC Circuit in the followthg Figure has R=3 KL and C= 5MF. The has Voltage 6 at t:o when the…

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Q: For the circuit shOwn, find the value of R such that the power supplied by the 100-volt source is…

A: To solve this, first we find the effective resistances from the 100 Volt source side and the…

Q: 10.0 N 20.0 N ww- 60.0 N -ww- 60.0 N 2.00 A 30.0 0 ww 5.0 Ω -5.0 V 10.0 V 15.0 N E 5.00 w - ww 20.0…

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Q: A laptop computer requires 12 V direct current, and yet it is plugged into a home's wall outlet.…

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Q: 2HF 5uF 300 1. in series resistors with a Calculate to point A shortly' after the and two capaciturs…

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Q: Can u elaborate the explanation? Does't brightness of lamp depend on power why did they mention only…

A: Solution:

Q: Use Ohm’s law to analyze more complex circuits consisting of multiple resistors and batteries?

A: Ohm's law is used in circuits which have resistors connected in series or parallel. It is applicable…

Q: The student engineer of a campusradio station wishes to verifythe effectiveness of the lightningrod…

A: Draw the circuit diagram for the resistance first measurement is shown below.

Q: At t= 0, the switch S is closed, and the capacitor charges to 11% of its final charge in 5 s. Find…

A: Capacitor stores charge to 11%  Time taken is t = 5 s

Q: Calculate the power dissipated by a 2Ω resistor if the potential difference across it is 1V.

A: Given Data : The resistance is given as R=2 Ω The potential difference is given as V = 1 V

Q: A capacitor is chargod up to 18 volts, and then connected in series to a resistor. After 10 seconds,…

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Q: Suppose an electrical wire is replaced with one having every linear dimensiondoubled (i.e., the…

A: We know that the resistance of a wire is given by, R=ρLAwhere,ρ=resistivity of the wire  L= length…

Q: 9:/ The RC Circuit in the followsthg Figure has R=3 KL and C= 5MF. The Capacitor has Valdage 6 at…

A: The RC circuit in the following figure has R = 3 k ohm a and C = 5 micro F. the capacitor has…

Q: Consider the circuit shown in the figure, with resistance 948 N and and capacitance 0.0847 µF. Vin…

A: GivenResistance ,R=948 ohmCapacitance, C=0.0847 μF

Q: A 1 150 - W toaster and an 825 - W microwave oven are connectedin parallel to the same 20.0 - A, 120…

A: a)Formula to calculate toaster’s resistance R is,

Q: Colculate the value of the Re resistance that ill keep the collector voltage at 12 volts with espect…

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Q: The crcu inthe fgure bekw contains a 00V batery wd four capacitors. in the tep perae trarch, there…

A: SOlution: Given that C1 = 4 micro F C3 = 2 micro F C2 = 9 micro F C4 = 6 micro F voltage = 90 V

Q: What is the equivalent resistance e xplain be tween pts A * B f the netubnk Shown n the figure?…

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Q: Consider a capacitor C that is tully charged by a 10 V power supply. Loter on the resistor R, shown…

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Q: Suppose that you wish to apply a 0.25-V potential differencebetween two points on the human body.…

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Q: A voltmeter has a rexistance 302.what be its xeading, when it is connected a cell of 'emf 2V having…

A: Internal Resistance, r= 10 Ohms EMF, V= 2 V Voltmeter resistance, R= 30 Ohms

Q: For the following circuit diagram determine I(s). where I(s) is the Laplace function of current. The…

A: Current flowing through the resistor is , Given, R = 1/18 ohm C = 13/10 Farad IR (s)= VR (s) / R.…

Q: Consider the multi loop circuit shown in Figure 9. Directions of the currents and the numerical…

A: Apply KVL on the left loop. Similarly, apply KVL on the right loop.

Q: You are asked to measure e.m.f of a cell. Which instrument will you use? A high resistance Voltmeter…

A: The potentiometer  is used to measure the e.m.f of cell.

Q: Calculate the Thevenin's voltage if the maximum power supplied to the load resistor (Pmax)= 350…

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Q: Starting from Ohm’s law, show that E = Jρ, where E is themagnitude of the electric field (assumed…

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Q: Design a circuit with a bulb, resistor(s), capacitor, and battery where the bulb gradually decreases…

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Q: C=6 MF battey has 500V potestat Con gnore resistake in baftey and wis Capuçılor jhitially thchaged…

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Q: For the following circuit diagram determine I(s). where (s) is the Laplace function of current. The…

A: The input voltage signal is a ramp which in the time domain will be given by Vi(t)=Votu(t) Write KVL…

Q: Suppose you want to measure resistances in the range from 5.00 n to 5.00 kn using a Wheatstone…

A: Wheatstone bridge- It is an electrical circuit used to calculate the unknown resistance, by…

Q: Q-18: A galvanometer has resistance of 30 ohm and it can give full scale deflection for 25 mA. What…

A: Shunt resistance S should be connected in parallel

Q: The equation P= V2/R indicates that the power dissipatedin a resistor decreases if the resistance is…

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Q: In the circuit given below, R= 8 Q. Find the current i, using mesh analysis R 10 Ω 82 52 V (+ 3i,…

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Q: The using Hirchuffir rules, determine the The nesirtur R in the circuit power, て。 1200

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Q: A heating element in a stove is designed to dissipate3.00 x 103 W when connected to 240. V. (a)…

A: Given data:Power of the element, P = 3.00 x 103 WVoltage, V = 240 V

Q: A galvanometer has a coil resistance of Realy = 41.4 Q. It is to be made into a voltmeter with a…

A: Given Data: The resistance of galvanometer is, RG =41.4 Ω. The full scale voltage of voltmeter is,…

Q: The pitential at the terminals of the battery falls from aV on arcost to a volts when a resistar of…

A: Given EMF E = 9 Volt External resistance R = 10 0hm Terminal potential V = 6 volt