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This mock test of Test: Basic Concepts - 1 for Electrical Engineering (EE) helps you for every Electrical Engineering (EE) entrance exam.
This contains 10 Multiple Choice Questions for Electrical Engineering (EE) Test: Basic Concepts - 1 (mcq) to study with solutions a complete question bank.
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QUESTION: 1

A solid copper sphere, 10 cm in diameter is deprived of 10^{20} electrons by a charging scheme. The charge on the sphere is

Solution:

n = 10^{20} , Q = ne = 10^{20} e (e = 1.6 x 10^{-19} )

= 16.02 C

The charge on the sphere is 16.02 coulomb. It will be positive.

QUESTION: 2

A lightning bolt carrying 15,000 A lasts for 100 μs. If the lightning strikes an airplane flying at 2 km, the charge deposited on the plane is

Solution:

QUESTION: 3

If 120 C of charge passes through an electric conductor in 60 sec, the current in the conductor is

Solution:

QUESTION: 4

The energy required to move 120 coulomb through 3V is

Solution:

W = Qv = 360J

QUESTION: 5

i = ?

Solution:

QUESTION: 6

In the circuit of fig P1.1.6 a charge of 600 C is delivered to the 100 V source in a 1 minute. The value of v_{1} must be

Solution:

In order for 600 C charge to be delivered to the 100 V source, the current must be anticlockwise.

Applying KVL we get

QUESTION: 7

In the circuit of the fig P1.1.7, the value of the voltage source E is

Solution:

Going from 10 V to 0 V

10 + 5 + E + 1 + 0 = 0 or E =-16 V

QUESTION: 8

Consider the circuit graph shown in fig. P1.1.8. Each branch of circuit graph represent a circuit element. The value of voltage v_{1} is

Solution:

QUESTION: 9

For the circuit shown in fig P.1.1.9 the value of voltage v_{o} is

Solution:

Voltage is constant because of 15 V source.

QUESTION: 10

R_{1} = ?

Solution:

Voltage across 60 Ω resistor = 30 V

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