CET Circuit Theory and Analysis

Question 1

What is Ohm's Law?

Accepted Answer

V = I * R

Answer

V = I + R

Answer

I = V * R

Answer

I = V / R

Question 2

In a series circuit, what happens to the current as more resistors are added?

Accepted Answer

The current stays the same, but resistance increases.

Answer

The current increases.

Answer

The current decreases.

Answer

The current fluctuates.

Question 3

What is the purpose of a capacitor in a circuit?

Accepted Answer

Answer

To store electrical energy and release it when needed.

Answer

To generate electrical energy.

Answer

To increase the voltage in the circuit.

Answer

To regulate current flow in the circuit.

Question 4

What is the total resistance in a parallel circuit?

Accepted Answer

The reciprocal of the sum of the reciprocals of the resistances.

Answer

The sum of all resistances.

Answer

The resistance of the smallest resistor.

Answer

The average resistance of all resistors.

Question 5

What is a common method for measuring current in a circuit?

Accepted Answer

Answer

Connect a voltmeter across the circuit.

Answer

Place an ammeter in series with the circuit.

Answer

Use a digital multimeter in parallel with the circuit.

Answer

Place a resistor across the circuit.

Question 6

What is the unit of measurement for resistance?

Accepted Answer

Ohms

Answer

Volts

Answer

Amps

Answer

Watts

Question 7

What does a diode do in a circuit?

Accepted Answer

It allows current to flow in only one direction.

Answer

It blocks all current flow.

Answer

It allows current to flow in both directions.

Answer

It amplifies the current.

Question 8

What is the formula for calculating electrical power?

Accepted Answer

P = V * I

Answer

P = I * R

Answer

P = V / I

Answer

P = V + I

Question 9

What is the purpose of a resistor in a circuit?

Accepted Answer

To regulate the flow of electrical current.

Answer

To store electrical energy.

Answer

To amplify the electrical current.

Answer

To convert electrical energy into light.