D.C. circuits multiple choice questions

D.C. Circuits

Total marks:0 / 10

1 of 10

The National Grid uses high-voltage transmission lines to carry electrical power around the UK. A particular transmission line delivers 800 MW of power at 132 kV to the user. It loses 1% of the transmitted power as heat.

What is the resistance of the transmission line?

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2 of 10

In this resistor network, the emf of the supply is 12 V and it has negligible internal resistance.

Diagram of a resistor network with a 12 V power supply showing resistors of 2 ohms, 3 ohms, and 1 ohm, and points X and Y.

What is the reading on a voltmeter connected between points X and Y?

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3 of 10

Resistors of resistance R, R and 3R are connected as shown.

Diagram showing resistors of resistance R, R, and 3R connected in parallel.

What is the resistance of the arrangement?

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4 of 10

Which row shows the resistances of an ideal ammeter and an ideal voltmeter?

Table showing the resistances of an ideal ammeter and an ideal voltmeter with options A to D.

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5 of 10

A resistor with resistance R is made from metal wire of resistivity $ρ$ .

The length of the wire is L.

What is the diameter of the wire?

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6 of 10

Resistors X and Y are connected in series with a 6.0 V battery of negligible internal resistance.

X has resistance R and Y has resistance $\frac{R}{2}$ .

A voltmeter of resistance R is connected across Y.

Diagram of a series circuit with resistors X and Y connected to a 6.0 V battery and a voltmeter across resistor Y.

What is the reading on the voltmeter?

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7 of 10

In the circuit shown, a potential difference of 3.0 V is applied across XY.

Circuit diagram showing a potential difference of 3.0 V applied across XY with resistors of 6 ohms, 2 ohms, 5 ohms, and 3 ohms.

What is the current in the 5 Ω resistor?

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8 of 10

Which is equivalent to the ohm?

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9 of 10

A wire has a resistance R.

What is the resistance when both the length and radius of the wire are doubled?

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10 of 10

Three resistors are connected in a circuit.

Circuit diagram showing three resistors with resistances of 20 ohms, 10 ohms, and 10 ohms.

The resistance of each resistor is shown in the circuit diagram.

What is the total resistance of this circuit?

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D.C. Circuits

Total marks:0 / 10

1 of 10

What is the resistance of the transmission line?

0 / 1

2 of 10

In this resistor network, the emf of the supply is 12 V and it has negligible internal resistance.

What is the reading on a voltmeter connected between points X and Y?

0 / 1

3 of 10

Resistors of resistance R, R and 3R are connected as shown.

What is the resistance of the arrangement?

0 / 1

4 of 10

Which row shows the resistances of an ideal ammeter and an ideal voltmeter?

0 / 1

5 of 10

A resistor with resistance R is made from metal wire of resistivity $ρ$ .

The length of the wire is L.

What is the diameter of the wire?

0 / 1

6 of 10

Resistors X and Y are connected in series with a 6.0 V battery of negligible internal resistance.

X has resistance R and Y has resistance $\frac{R}{2}$ .

A voltmeter of resistance R is connected across Y.

What is the reading on the voltmeter?

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7 of 10

In the circuit shown, a potential difference of 3.0 V is applied across XY.

What is the current in the 5 Ω resistor?

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8 of 10

Which is equivalent to the ohm?

0 / 1

9 of 10

A wire has a resistance R.

What is the resistance when both the length and radius of the wire are doubled?

0 / 1

10 of 10

Three resistors are connected in a circuit.

The resistance of each resistor is shown in the circuit diagram.

What is the total resistance of this circuit?

0 / 1

D.C. Circuits - exam practice

D.C. Circuits

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Question 10 of 10

D.C. Circuits - exam practice

D.C. Circuits

Question 1 of 10

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Question 5 of 10

Question 6 of 10

Question 7 of 10

Question 8 of 10

Question 9 of 10

Question 10 of 10