Electric Circuits Answers

While repairing an electric bulb socket, an electrician gets a mild shock when a

current of 0.005 A passes through him. The same electrician is killed by a current of 0.15 A when he turned on an electric bulb while taking a bath. The voltage in each situation is equal to 120 V. Find the resistance of the electrician in each situation.

A capacitor is charged to a potential of 12.0 V and then connected to a voltmeter having an

internal resistance of 3.40 MΩ. After a time of 4.00 s the voltmeter reads 3.0 V. What are

(a) the capacitance and (b) the time constant of the circuit?

Enumerate at least 5 special types of diode. Cite/give the following for each diode:

1. Schematic symbol
2. Construction
3. Characteristic Curve
4. Basic operation (including mathematical equation if there's any)
5. Applications

1. What happens if the filament of a single bulb fails (or if the bulb is

removed from its socket)? Why?

A charge of 3,600 C passes through an electric lamp in 3.0 min. What is the

current in the lamp?

Calculate /1.12.13.4ls and Is

R1 = 1kohms→I1

R2 = 1kohms→I2

R3 = 3kohms→I3

I4 R4→ 5K ohms

I5→6Kohms

R6→ 6K ohms

I6 ←

R7 2K ohms

Determine the amount of energy, in joules, stored in a defibrillator’s 17.0 μF capacitor that has a potential difference of 9.25 ✕ 105 V.

An iron wire with a diameter of 0.80mm will have a resistance of 0.4ohms. What resistance will the iron wire of 0.40mm diameter have if it has the same length as the iron wire?

What is kirchoff junction rule

A phcn service is made up of seven strands of aluminum wire each wire has a diameter of 1.7mm calculate the cross sectional area of the service cable