Y9 ELECTRICITY MEGAQUIZ

What is the electromotive force (e.m.f.) supplied by the battery in this circuit? (enter magnitude without units)

(a)  

A student wishes to determine the resistance of a resistor. She uses an ammeter and a voltmeter in a circuit. In which circuit are the ammeter and voltmeter connected correctly?

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Using the water flow analogy, what is the 'pressure' supplied by the battery in this circuit? (enter value only, without units)

(a)  

The diagram shows a circuit. What should be increased to increase the current in the circuit?

• the e.m.f. of the battery

• the length of the connecting wires

• the resistance of the resistor

• the temperature of the resistor

Using the water flow analogy, what is the electrical 'pressure' (voltage) delivered to the load in this circuit? (enter the value only, without units)

(a)  

Two meters are connected in a circuit to measure the current in a component and the potential difference across the component. Which meters are used and how are they connected to the component?

• an ammeter in parallel for current, a voltmeter in series for potential difference

• an ammeter in series for current, a voltmeter in parallel for potential difference

• a voltmeter in parallel for current, an ammeter in series for potential difference

• a voltmeter in series for current, an ammeter in parallel for potential difference

What is the resistance of the resistor in this circuit? (enter value only)

(a)  

What is the unit used to measure the electrical pressure (push or pull) on electrons in a circuit?

(a)  

If the current in the circuit is 2 amps, what is the resistance of the resistor?

(a)  

What is the unit of resistance?

(a)