HARD
Upper Secondary: IGCSE
IMPORTANT
Earn 100
Draw a circuit diagram to show how a voltmeter and an ammeter are used to measure the resistance of a lamp.
Important Questions on Electrical Quantities
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Write the equation relating voltage, current and resistance that you would use to calculate the resistance of the lamp.
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Copy and complete the table to show the units and their symbols for each of the quantities shown.
| Unit | Symbol for unit | |
| Potential difference | ||
| Current | ||
| Resistance |
HARD
Upper Secondary: IGCSE
IMPORTANT
Copy and complete the table below (leave plenty of space!). The first column shows a symbol equation relating quantities. In the second column, write the same equation in words to show the names of the quantities. In the third column, write the same equation in units.
| Equation | In words | In units |
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Draw a circuit to show how a cell can be connected to a switch and a lamp, so that the lamp lights up when the switch is closed. Label the components in your circuit.
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Draw a circuit to show how a cell can be connected to a switch and a lamp, so that the lamp lights up when the switch is closed. Label the components in your circuit. Add arrows to your circuit to show the direction in which electric current flows in the circuit.
EASY
Upper Secondary: IGCSE
IMPORTANT
Name the device you would use to measure the e.m.f. of the cell.
EASY
Upper Secondary: IGCSE
IMPORTANT
What unit is e.m.f. measured in?
HARD
Upper Secondary: IGCSE
IMPORTANT
To determine the resistance of a resistor, an ammeter and a voltmeter can be used. Draw a circuit diagram to show how you would use these instruments, together with a power supply, to determine .
