EE2201 Session 1 : Fill in the blank

The __________ is the measure of the electrical potential energy between two points in a circuit, and it is measured in volts (V).

The flow of electric charge in a circuit is called __________, and it is measured in amperes (A).

__________ is the opposition to the flow of current in a circuit, and it is measured in ohms (Ω).

The rate at which electrical energy is transferred by an electric circuit is known as __________, and it is measured in watts (W).

Ohm's Law states that the current through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance between them. The formula is ______ where V is voltage, I is current, and R is resistance.

A 9V battery is connected to a circuit with a resistance of 3 ohms. What is the current flowing through the circuit?

• 1 A

• 2 A

• 3 A

• 3 A

A toaster operates at 120V and draws a current of 8A. What is the power consumed by the toaster?

• 960 W

• 15 W

• 128 W

• 480 W

A light bulb has a resistance of 240 ohms and is connected to a 120V power source. What is the current flowing through the light bulb?

• 0.5 A

• 2 A

• 0.25 A

• 1 A

A laptop charger has an output of 19V and 3.42A. What is the power output of the charger?

• 64.98 W

• 22.9 W

• 34.2 W

• 19 W

A circuit with a voltage of 12V has a current of 2A flowing through it. What is the resistance of the circuit?

• 6 ohms

• 24 ohms

• 10 ohms

• 5 ohms