Series, Parallel, Other Things

The current taken by a 10Ω resistor when connected to a 230V supply is...?

• 2.3A
• 230mA
• 23A
• 10A

The resistance of an element which takes 12A from a 230V supply is..?

• 10.5Ω

• 2760Ω

• 19.17Ω

• 0.05Ω

A 12Ω tungsten halogen lamp was found to be drawing a current of 2 amperes at full brilliance, The voltage across the lamp under these conditions was..?

• 6 V

• 0.16 V

• 12 V
• 24 V

The resistance of 100m of 1mm² CSA cable with a resistivity of (7.5 x 10⁻⁹) will be...?

• 7.5 MΩ

• 75 mΩ

• 7.5 Ω

• 0.75 Ω

Resistors of 6Ω and 3Ω are connected in series. The total resistance will be..?

• 3Ω

• 2Ω

• 18Ω

• 9Ω

Three resistors of 24Ω, 32Ω and 40Ω are connected in series. The total resistance will be..?

• 30720Ω

• 96Ω
• 120Ω
• 10.2Ω

Three resistors of 24Ω, 32Ω and 40Ω are connected in parallel. The total resistance will be..?

• 15.27Ω
• 20.45Ω
• 28.63Ω
• 10.91Ω

Resistors of 6Ω and 3Ω are connected in parallel. The total resistance will be..?

• 9Ω

• 3Ω

• 0.5Ω

• 2Ω

Two identical resistors are connected in series across a 12V battery. The volt drop across each resistor is..?

• 24V
• 6V
• 12V
• 0V

Two identical resistors are connected in parallel across a 12V battery. The volt drop across each resistor is..?

• 24V
• 6V
• 0V
• 12V