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Resistors/Capacitors Explained

Total questions: 10

Worksheet time: 8mins

Name
Class
Date
1.

What is the purpose of resistors in a circuit?

a)

To increase the current flow

b)

To amplify the signal

c)

To decrease the voltage

d)

To limit the current flow

2.

What unit is used to measure resistance?

a)

Ohms

b)

Watts

c)

Amps

d)

Volts

3.

How do resistors protect components like LEDs in a circuit?

a)

By increasing the voltage

b)

By converting electrical energy into heat

c)

By amplifying the current

d)

By reducing the resistance

4.

What does the color coding on resistors represent?

a)

Power rating

b)

Tolerance

c)

Resistance value

d)

Maximum voltage

5.

How do surface mount device resistors differ from through hole resistors?

a)

They have a higher power rating

b)

They are soldered directly onto metal pads

c)

They are used for high heat applications

d)

They have a helical groove to control resistance

6.

What is the main function of a capacitor?

a)
Generate heat
b)
Produce light
c)
Convert mechanical energy to electrical energy
d)
Store and release electrical energy
7.

What happens when a capacitor exceeds its maximum voltage rating?

a)
The capacitor will increase its capacitance
b)
The capacitor will decrease its capacitance
c)
The dielectric material inside the capacitor can break down, leading to a short circuit or explosion.
d)
The capacitor will start emitting light
8.

What is the unit used to measure capacitance?

a)
Ohm
b)
Volt
c)
Farad
d)
Newton
9.

What happens when a capacitor is connected to a battery?

a)
The capacitor becomes a resistor
b)
The capacitor charges up by accumulating opposite charges on its plates, creating an electric field between them.
c)
The battery explodes due to overload
d)
The capacitor discharges all its stored energy instantly
10.

How can a capacitor discharge its stored energy?

a)

By connecting a load to the circuit

b)
By converting the stored energy into heat
c)
By increasing the distance between the plates
d)
By absorbing more energy from the surroundings