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Q 1/7
Score 0
How could the strength of an electromagnet be increased?
300
by reducing the length of the core of the electromagnet
by decreasing the amount of current in the electromagnet
by using rubber material as the core for the electromagnet
by increasing the number of coils in the wires of the electromagnet
Q 2/7
Score 0
The circuit diagrams show four different arrangements of components. In which circuit will both bulbs shine brightly?
300
A parallel circuit with multiple lightbulbs
A series circuit with multiple light bulbs
7 questions
Q.
How could the strength of an electromagnet be increased?
1
300 sec
PSc.3.3.5
Q.
The circuit diagrams show four different arrangements of components. In which circuit will both bulbs shine brightly?
2
300 sec
PSc.3.3.2
Q.
How would decreasing the diameter of the wires in a circuit influence the resistance and flow of electrons in the circuit?
3
300 sec
PSc.3.3.3
Q.
The concept of electromagnetic induction can be used to explain the operation of a
4
300 sec
PSc.3.3.5
Q.
A plastic rod is rubbed with a piece of wool and the plastic rod becomes negatively charged.
A glass rod is rubbed with a piece of silk and the glass rod becomes positively charges.
A charged object is placed near the plastic rod, and an attractive force is detected. How will the object react when near the glass rod?
5
300 sec
PSc.3.3.1
Q.
A circuit has 3 amps of current and a resistance of 2 ohms. What is the voltage of the circuit?
6
300 sec
PSc.3.3.2
Q.
A flashlight bulb connected to a 9 Volt battery draws a current of 1.5 amps. What is the power used by the flashlight bulb?
