IEE1 (9)

How is the storage battery rated in capacity?

• volts

• watts

• amperes

• ampere-hour

Which of the following characteristic of the plates of the battery will the Ampere-Hour of the battery depends on?

• distance

• area

• strength

• thickness

A 12 volts battery has a 50 ampere-hour capacity. The internal resistance is 0.1 ohm. A 5-ohm load is connected for 5 hours How many ampere-hours are still left?

• 28.51

• 41.24

• 38.23

• 38.23

The terminal voltage of a battery is 11.8 v when delivering 20 w of power to an external load resistor R. If the battery has an emf of 15 v, find the internal resistance of the battery.

• 1.96 ohm

• 1.89 ohm

• 1.68 ohm

• 1.75 ohm

The terminal voltage of a battery is 11.8 v when delivering 20 w of power to an external load resistor R. If the battery has an emf of 15 v, find the internal resistance of the battery.

• 1.96 ohm

• 1.89 ohm

• 1.68 ohm

• 1.75 ohm

The terminal voltage of a battery is 11.8 v when delivering 20 w of power to an external load resistor R. If the battery has an emf of 15 v, find the internal resistance of the battery.

• 1.96 ohm

• 1.89 ohm

• 1.68 ohm

• 1.75 ohm

Two batteries are connected in series, one of 8 v, 2 k and the other of 16 v, 3 k ohms. The combination supplies a 7 k load. Determine the power dissipated in the 3 k ohms battery.

• 12 mw

• 1.2 mw

• 12 w

• 1.2 w

It is the unconventional unit of mmf in the CGS system.

• unit pole

• statvolts

• gilberts

• ampere turns

What is the counterpart of magnetic flux in an electric circuit?

• voltage

• current

• resistance

• conductance

When the current in a wire is 5A, the flux 3 meters from the wire is 30 mWb. If the current is decreased to 4A, what will be the flux?

• 24 mWb

• 37.5 mWb

• 19.2 mWb

• 46.88 mWb