Tag the questions with any skills you have. Your dashboard will track each student's mastery of each skill.
Give this quiz to my class
Q 1/15
Score 0
As a magnet is moved into the coil of wire as shown, there is a small reading on the sensitive ammeter. Which change increases the size of the reading?
60
unwinding some of the turns of wire
moving the opposite pole into the coil
pulling the magnet out of the coil
pushing the magnet in faster
Q 2/15
Score 0
A student moves a magnet into a coil of wire as shown in the diagram. The coil of wire is connected to a sensitive ammeter. Which change does not produce an increase in the reading?
60
increasing the resistance of the ammeter
increasing the strength of the magnet
increasing the number of turns on the coil
increasing the speed of the magnet
15 questions
Q.
As a magnet is moved into the coil of wire as shown, there is a small reading on the sensitive ammeter. Which change increases the size of the reading?
1
60 sec
Q.
A student moves a magnet into a coil of wire as shown in the diagram. The coil of wire is connected to a sensitive ammeter. Which change does not produce an increase in the reading?
2
60 sec
Q.
A current is produced when a wire is moved between two magnets as shown. Which device uses this effect?
3
60 sec
Q.
A bar magnet is pushed into one end of a long coil connected to a sensitive meter.
Which of the following affects the magnitude of the deflection of the meter?
4
60 sec
Q.
The diagram shows the N-pole of a magnet moving into, and out of, a coil of wire. This movement produces a current in the coil of wire. The current produces a magnetic pole at X.
Which pole is produced at X when the magnet is moved in and when it is moved out?
5
60 sec
Q.
A magnet is moved towards a coil of insulated wire. A voltmeter connected across the coil shows a positive reading.
What produces a higher reading on the voltmeter?
6
60 sec
Q.
The electromotive force (e.m.f.) induced in a conductor moving at right-angles to a magnetic field does not depend upon
7
60 sec
Q.
A small coil is connected to a galvanometer G, as shown. When a magnet is allowed to fall towards the coil, the galvanometer pointer gives a momentary deflection to the right of the zero position.
The magnet moves through the coil.
What happens to the galvanometer pointer as the magnet falls away from the coil?
8
60 sec
Q.
A magnet is pushed slowly into a coil and there is a current in the coil in the direction shown. The magnet is then pulled out quickly from the same end of the coil.
What happens to the direction and the size of the current?
9
60 sec
Q.
A magnet is pushed horizontally towards a coil of wire, inducing an e.m.f. in the coil. In which direction does the induced e.m.f. make the coil move?
10
60 sec
Q.
A conductor is moving horizontally across a vertical magnetic field. An e.m.f. is induced in the conductor. No deflection is seen on the ammeter.
What is the reason for this?
11
60 sec
Q.
The diagram shows how a magnet and a coil may be used to induce an electric current. How could the ammeter reading be increased?
12
60 sec
Q.
A small coil is connected to a sensitive ammeter. The ammeter needle can move to either side of the zero position.
As the magnet falls towards the coil, the ammeter needle moves quickly to the right of the zero position.
The magnet moves through the coil.
How does the ammeter needle move as the magnet falls away from the coil?
13
60 sec
Q.
A permanent magnet moving up and down on the end of a spring induces an e.m.f. in a coil. Which factor, on its own, would decrease the maximum value of the induced e.m.f.?
14
60 sec
Q.
A student pushes the N-pole of a bar magnet into the end Q of a long solenoid and observes a deflection to the right on the sensitive ammeter. What will produce a deflection in the same direction?
