- basic circuit diagrams with lamp, resistor, battery/cell, switch, ammeter

A student investigates the resistance of a lamp. The student uses a circuit that contains an ammeter, a battery, a lamp and a voltmeter to determine the resistance of the lamp. Draw a circuit diagram to show how he should connect the apparatus.

The figure shows an improperly connected electric circuit. What change should be made so that all the components work correctly?*2 pointsreverse connections to ammeter or batteryreverse connections to ammeter and batteryreverse connections to the lampconnect the ammeter in parallel with the lamp

The first circuit constructed is composed of one dry cell (battery), one light bulb, a switch and connecting wires. What is the recorded current in the multimeter? Write the value and the appropriate unit of measure.

Describe how the student could use her circuit to investigate how the currentthrough a filament lamp affects its resistance

Which diagram shows a circuit that will allow the lamps to be switched on and off independently?*2 pointsABCD