BEE QUIZ-1 (IT-B)

According to Ohm’s law, when resistance is doubled and voltage is kept constant, current will:

• Become zero

• Remain the same

• Get doubled

• Get halved

The unit of resistance is:

• Ohm (Ω)

• Ampere (A)

• Volt (V)

• Watt (W)

If a 10 Ω resistor is connected across a 20 V supply, the current is:

• 0.5 A

• 2 A

• 5 A

• 10 A

When 3 A current flows through a resistance of 4 Ω, the potential difference across the resistor is:

• 7 V

• 12 V

• 1.33 V

• 0.75 V

The resistance of a conductor depends on:

• Material

• Length

• Cross-sectional area

• All of the above

Three resistors of 2 Ω, 3 Ω, and 6 Ω are connected in series. The equivalent resistance is:

• 1 Ω

• 6 Ω

• 11 Ω

• 12 Ω

Three resistors of 2 Ω, 3 Ω, and 6 Ω are connected in parallel. The equivalent resistance is:

• 1 Ω

• 2 Ω

• 3 Ω

• 6 Ω

In a series connection, current through each resistor is:

• Different

• Same

• Depends on resistance value

• Zero

In a parallel connection, voltage across each resistor is:

• Same

• Different

• Zero

• Maximum across the smallest resistor

When two resistors of equal value are connected in parallel, their equivalent resistance is:

• Half of one resistor

• Double of one resistor

• Same as one resistor

• Zero