If a resistor is to carry 1 A of current and handle 100 W of power, how many ohms must it be? Assume that voltage can be adjusted to any required value.

Q: Find voltage across 6 ohm resistor.

A: Given circuit:

Q: What is a resistor and what it’s used  for

A:

Q: 100 volt bulb has a resistance of 500 ohms. The number of hours it can work for every Wh of energy…

A: Power consumed by the bulb =Voltage2Resistance Energy = power(watts)*time(hours) Wh

Q: What is the power absorbed in Watts by a resistor with resistance of 5.00 is connected to a voltage…

A: Given: Resistor with resistance, R=5 Ω Voltage source with voltage, V = 2.7 V

Q: An undetermined number of feet of wire have been used with a diameter of 1/16 inch and the…

A: Given : D =116 inchinch=0.0254 cm-3

Q: a load of 10 ohms was connected to a 12-volt battery. the current drawn was 1.18 amperes. what is…

A: Given: EMF of battery E = 12 V, Load resistance RL = 10 ohm, Current drawn I = 1.18 A. Let Ri be the…

Q: why does the value of the current increases when the value of the voltage is increased?

A: Yes it's true the value of the current increases when the value of the voltage is increased.…

Q: If a resistor has 5.5 V across it and 3 mA flowing through it, what is the power?

A: Given: A resistor with voltage 5.5 V across it and current 3 mA through it.

Q: find the power absorbed by the 3 ohm and 5 ohms

A:

Q: What is the conductance of a 25 kO resistor?

A: Given: Resistance of the resistor, R=25 kΩ.

Q: Calculate the work done in a resistor of value 50 ohm carrying 20 A current for 20 hours.

A: Value of resistor (R), current(I) and time (t) are –

Q: Find Voltage drop for each resistor

A: Given a circuit with voltage source and resistors

Q: Current across 20 ohm resistor ?

A: Given circuit,

Q: If the Lamp will be used in a Classroom which needed a much brighter light of 50 watts, with a…

A: Power and Resistance- The relation between Power and Resistance can be mathematically expressed as…

Q: What is the 2nd band color of a three-band resistor having a resistance rating of 6.1 mega ohms?

A: The given resistance is 6.1 Mohm.

Q: How is the storage battery rated in capacity? a. volts b. watts c. amperes d. ampere-hour

A:

Q: If a resistor is to carry 1 A of current and handle 100 W of power, how many ohms must it be?

A:

Q: A metal bar is 2 m long and 8 mm in diameter. Calculate its resistance if the resistivity of the…

A:

Q: 1. What is the color code of 333k2, ±10% five band resistor? 2. What is the tolerance of a 3 band…

A: This question belongs to basic electrical . It is based on the concept of calculation of resistance…

Q: power

A:

Q: across a resistance is doubled, what will happen to the power absorbed by 2. If the voltage the…

A: 2. Given, Voltage across a resistor is doubled.

Q: Plot the linear curve for 100 Ohm 10k Ohm resistors on your graph paper

A: R=100k and R=10k ohm

Q: A 36V, 1.5Ah rated battery has 30 Ohms of internal resistance. How many hours will a 120 Ohm load…

A: Given, Voltage rating of a battery is E = 36 volts Capacity of battery Q = 1.5 Ah Internal…

Q: An electric heater is used for 2hrs daily. The monthly bill of the electricity is 10$. The rate of…

A: The monthly electricity bill evaluated as:

Q: The following items are connected in a circuit. In which one would you find a voltage gain? a.…

A: (a) Consider that motor is a power conversion device and do not have any concept of the voltage…

Q: If 750 µA is flowing through 11 k ohms of resistance, what is the voltage drop across the resistor?

A:

Q: A certain milliameter, with a scale of 0 to 1.0 mA, has a resistance of 32 ohms. If this milliameter…

A: If we connect ammeter directly to 120volt line, Then actual current flowing through the ammeter =…

Q: 1. What is the 3rd band color of a five-band resistor having a resistance rating of 73.4 mega ohms…

A: The resistance can be written as: R=73.4×106±2%=734×105±2% Ω From the table we can write colour for…

Q: What will be the amount of work done by a 200 ohm resistor carrying a current of 20 A for 20 hours?

A: For electrical circuits, power can be defined as work done per unit time. So, product of power and…

Q: 30 4. 350

A: Given circuit is,

Q: 5. (10) A load of 10 ohms was connected to a 12-volt battery. The current drawn was 1.18 amperes.…

A: Given: Load resistance, RL=10 Ω Source voltage, V=12 V Current drawn, I=1.18 A

Q: What is the basic operation of an ohmmeter as it measures a resistor?

A: • Basically it is a electronic device whose main purpose is to measure the electrical resistance of…

Q: If you have a resistor of colors (red, brown, orange, silver) and it was measured by ohmmeter as…

A: In this question we need to check the given resistance of colour are within the tolerance or not

Q: . What is the unit of measurement of resistance? Volt Ohm Ampere

A: As per company guidelines we are supposed to answer only one question. Kindly repost other questions…

Q: A load of 10 ohms was connected to a 12-volt battery. The current drawn was 1.18 amperes. What is…

A: As per the guidelines of Bartleby we supposed to answer first question only for remaining questions…

Q: If a resistor is to carry 4 A of current and handle 100 W of power, how  many ohms must it be

A: Given Current across Resistor IR = 4A. Power across Resistor PR = 100W  Then find resistor value ?

Q: Q3\ If you have a resistor of colors (red, brown, orange) and it was measured by Ohmmeter as 230002,…

A:

Q: A resistor must provide a voltage drop of 27 V when the current is 10 mA. What is the required value…

A: Given data  Voltage drop across Resistor V = 27 V Current passing through the resistor i = 10mA To…

Q: 4 A 2V 2 V

A: So we have to find if the left box is absorbing power or supplying the power.

Q: If 50 A current is flowing in the 2 ohm resistor. What will be the dissipated power and voltage…

A:

Q: Determine the conductance of a resistor having a resistance of 5 ohms.

A: The conductance is the inverse of resistance and the unit of conductance is siemens.

Q: If you have a two resistance of colors (Orange, Blue, Yellow, Gold) and (Yellow, Violet, Black,),…

A: The solution is given below

Q: Calculate the voltage needed to supply 2 A through a resistance of 30 ohms

A: It is given that: Current=I=2 AResistance=R=30 Ω

Q: If 1.27 × 1021 electrons move at given point the circuit for 100s, how much current is flowing in a…

A: Current I = dq/dt                  = q/ t Given time t = 100 us  And from given data find the charge…

Q: What is the highest voltage, Vmax the battery can have without

A: Force  The force F is given as F=mgm= mass g=acceleration due to gravity  The Force of a metal bar…

Q: What is the resistance of a piece of copper wire that has a size of 2.5 mil-feet if 1 mil-foot has a…

A:

Q: find resistance of the resistor given below colour 1=yellow colour2=blue colour 3=red colour…

A: Color 1st and 2nd digit Multiplier Tolerance Black 0 ×1   Brown 1 ×10 ±1% Red 2 ×100 ±2%…

Q: 3. What is the nominal value and tolerance of a resistor that has the color code of Red, Red, Brown,…

A:

Power Measurement

According to Blondel's theorem, the total power is measured with one less number of wattmeters than the number of wires present in the system. So, a single-phase and two-wire system will require one wattmeter and a single-phase and the three-wire system will require two wattmeters, and a three-phase and the three-wire system will also require two wattmeters and a three-phase and the four-wire system will require three wattmeter devices. The wattmeter is a device that measures power using one voltage and one current input as shown in the above figure. Multiple current or voltage input pair cables are used by many power analyzers and digital storage oscilloscopes (DSOs) for measuring watts, in effect within a single instrument acting as multiple wattmeters. It is possible to measure three-phase and four-wire power with one correctly specified power analyzer.