Electric Circuits Answers

A conductor having a cross-sectional area of 0.00161 sq in. carries. a current of 4.5 amp. Calculate the electron velocity, assuming the wire to be (a) copper, (b) aluminum.

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Calculate the steady state temperature of a tungsten bulb rated 1Kw,it's filament length is 50cm and radius 0.1mm, assumed it to be a black body

a) A 150Ω resistor is connected in series to a1kΩ resistor and to a battery of 127V. Find the effective resistance and current in the circuit.

b) A 10Ω resistor is connected in parallel to 32Ω resistor and a voltage source of 24V. Find the effective resistance and total current provided in the circuit. Determine the current in each of the resistors.

a) Two resistors R1 = 3Ω and R2 = 8Ω are connected in parallel with a battery of 12V. Calculate the voltage that flows through each resistor. 

a) A 200Ω resistor is connected in series with other resistor of 2kΩ and a battery of 150V. Determine the equivalent resistance and the current flowing through the circuit. 

b) A 12V battery is connected in a series circuit with a resistor R1 = 8Ω and a resistor R2 = 3Ω, determine the current that passes through R1 and R2. 

potentiometer is 10 m long. It has a resistance of 20 Ω. It is connected in series with

a battery of 3 V and a resistance of 10 Ω. What is the potential gradient along with wire?

Two 33ohms resistor are connected in parallel followed by two more 33ohms resistor connected in parallel. what value of a single resistor will be used to replace this 4 resistor

Determine the current flowing through an element if the charge flow is given by a. q(t)= (3e^-t -5e-^2t) nC b. q(t)= 10sin120πt pC c. q(t)= 20e^-4t cos50t µC

An electric fan is supplied by a constant current of 0.14 A. Calculate

the time for which it is

operated when the total charge flow is 170 C.