Module 1 Quiz

A 68 Ω resistor is connected across the terminals of a 3 V battery. The power dissipation of the resistor is

• 132 mW

• 13.2 mW

• 22.6 mW

• 226 mW

Energy is equal to power multiplied by voltage.

• True

• False

The joule is a unit of energy.

• True

• False

The watt is the unit of power.

• True

• False

A certain appliance uses 350 W. If it is allowed to run continuously for 24 days, how many kilowatt-hours of energy does it consume?

• 20.16 kWh

• 201.6 kWh

• 2.01 kWh

• 8.4 kWh

The value of currnets I1,I2,I3 in the circuit are_______________

• 
• 
• 
• 

• 
• 
• 
• 

• 4

• 1

• 3

• 2

Calculate the value of R in the given circuit,when the current in the branch OA is zero.

• 5 ohm

• 3 ohm

• 12 ohm

• 2 ohm

In alternating current (ac) the magnitude of current varies

• Randomly

• Periodically

• Exponentially

• None of the above