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Understanding Basic Circuit Concepts

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

What is the formula for Ohm's Law?

a)

V=I×RV = I \times R

b)

P=I×VP = I \times V

c)

R=VIR = \frac{V}{I}

d)

I=PVI = \frac{P}{V}

2.

In a series circuit, if one component fails, what happens to the entire circuit?

a)

The circuit continues to work

b)

The circuit stops working

c)

Only the failed component stops working

d)

The voltage increases

3.

Which of the following is a component of a circuit?

a)

Resistor

b)

Transformer

c)

Diode

d)

All of the above

4.

Calculate the total resistance in a parallel circuit with resistors of 4 Ω\Omega , 6 Ω\Omega , and 12 Ω\Omega .

a)

2 Ω\Omega

b)

3 Ω\Omega

c)

4 Ω\Omega

d)

6 Ω\Omega

5.

If a circuit has a voltage of 12V and a current of 2A, what is the power consumed by the circuit?

a)

6W

b)

12W

c)

24W

d)

48W

6.

Which of the following correctly describes the relationship between voltage and current in a circuit?

a)

Voltage is directly proportional to current

b)

Voltage is inversely proportional to current

c)

Voltage is equal to current

d)

Voltage is unrelated to current

7.

Analyze the circuit diagram below and determine the total current flowing through the circuit if the total resistance is 10 Ω\Omega and the voltage is 20V.

a)

1A

b)

2A

c)

3A

d)

4A

8.

A circuit consists of a 9V battery and three resistors in series: 2 Ω\Omega , 3 Ω\Omega , and 4 Ω\Omega . Calculate the voltage drop across the 3 Ω\Omega resistor.

a)

1V

b)

2V

c)

3V

d)

4V

9.

Design a simple circuit diagram that includes a battery, a switch, and a light bulb. Explain the function of each component in the circuit.

a)

Battery provides power, switch controls the circuit, light bulb emits light

b)

Battery stores energy, switch emits light, light bulb controls the circuit

c)

Battery controls the circuit, switch provides power, light bulb stores energy

d)

Battery emits light, switch stores energy, light bulb provides power

10.

Evaluate the effect of increasing the resistance in a circuit while keeping the voltage constant. What happens to the current?

a)

Current increases

b)

Current decreases

c)

Current remains the same

d)

Current becomes zero