Electric Circuits

How should the ammeter be connected in circuit?

• series

• parallel

• it depends on the device it measures

• in any connection

How should the voltmeter be connected in a circuit?

• series

• parallel

• it depends on the device being measured

• in anyway

The voltage across the filament bulb is 9 V and the current flowing though it is 0.05 A. Find the resistance of the bulb.

• 5.56 ohm

• 0.45 ohm

• 180 ohm

• 1500 ohm

Four 3V cells are connected in series, what is the total potential difference across them?

• 3 V

• 7 V

• 12 V

• 15 V

A current of 2 A flows through a fixed resistor with resistance of 10 ohm. What is the voltage across it?

• 20 V

• 5 V

• 12 V

• 18 V

According to Ohm's Law, the voltage across an ohmic device is directly proportional to the current flowing through it provided that _____________ is constant.

• length of wire

• pressure

• humidity

• temperature

What is the current flowing through a device if 1 x 10³ C of charge pass through it for 3 minutes?

• 5.56 A

• 333.3 A

• 3000 A

• 0.09 A

What is the unit of the amount of charge?

• Coulomb

• Colon

• Ampere

• Volts

It is the rate of flow of charge.

• voltage

• current

• resistance

• power

It is the work done per unit charge delivered by the power source.

• power

• voltage

• current

• resistance