WorksheetsINTRO ELECTRIC CIRCUIT
Total questions: 10
Worksheet time: 5mins
What is the unit of voltage?
Ampere (A)
Ohm (Ω)
Volt (V)
Watt (W)
Which device converts chemical energy directly into electrical energy?
Fuel cell
Battery
Solar cell
DC generator
How is current measured?
In parallel with a voltmeter
In series with an ammeter
In series with an ohmmeter
In parallel with an ohmmeter
What is the symbol for resistance?
V
I
R
Ω
Which of the following is a type of DC voltage source that operates based on the photovoltaic effect?
Battery
Fuel cell
Solar cell
DC generator
According to Ohm’s Law, what is the formula to calculate voltage?
V = I × R
V = I / R
V = R / I
V = I + R
What is the current through a 15 Ω resistor connected to a 30 V battery?
2 A
1.5 A
3 A
0.5 A
What power is dissipated by a 40 Ω resistor when a voltage of 6V is connected across it?
1.2 W
0.9 W
2.4 W
1.5 W
What is the unit of power in an electric circuit?
Volt (V)
Ampere (A)
Ohm (Ω)
Watt (W)
How much energy is used by a light-emitting diode when it is illuminated by a 10 mA current at a voltage of 2 V for 30 minutes?
60 J
30 J
36 J
72 J
