Grade X Combination of Resistors - Part1

A 3.0 Ω resistor and a 6.0 Ω resistor are connected in parallel.What is their combined resistance?

• 0.50Ω

• 2.0Ω

• 4.5Ω

• 9.0Ω

The circuit diagram shows a 4.0 Ω resistor and an 8.0 Ω resistor connected to a 6.0V battery. What is the current in the battery?

• 0.50A

• 0.75A

• 1.50A

• 2.00A

A 30 Ω resistor is connected in series with another resistor and a 6.0 V battery. The current in the circuit is 0.12 A. A voltmeter is connected across the other resistor. What is the reading on the voltmeter?

• 2.4 V

• 3.6 V

• 6.0 V

• 9.6 V

A circuit contains four ammeters A, B, C and D, and three resistors with different values. Which ammeter shows the largest reading?

• A

• B

• C

• D

Which one of the following resistors connected in parallel with a 24 Ω would give a total resistance of 8 Ω

• 16 Ω

• 12 Ω

• 8 Ω

• 6 Ω

40 lamps, each of resistance 8 ohm are connected in series with a 240 V supply, in order to decorate a tree. The current in each lamp is

• 2.0 A

• 0.75 A

• 1.0 A

• 1.33 A

In which combination will you get maximum total resistance?

• Series combination

• None of these

• Parallel combination

In the circuit shown, the current takes multiple paths from the positive battery terminal to the negative battery terminal.

Find the total resistance of the circuit.

• 31.2 Ω

• 29 Ω

• 35 Ω

What is ohm?

• Measures electrical resistance

• Measure electricity

• Bob esponja

• Measues circuits

What is the total resistance of the three resistors in parallel with values of 2 ohms, 8 ohms, and 14 ohms?

• 1.44 ohms
• 2.24 ohms
• 2.32 ohms
• 2.65 ohms