1.Identify any two electric current effects.
1.Identify any two electric current effects.
Answer :
The effect of electric current is as follows:
(i) Heating and lighting can be caused by electric current.
(ii) A straight conductor can be temporarily transformed into a magnet by using electric current.
2.A nearby compass needle will deviate from its north-south orientation when the current is turned on through a wire. Explain.
2.A nearby compass needle will deviate from its north-south orientation when the current is turned on through a wire. Explain.
Answer:
The wire acts like a magnet by deflecting the nearby compass from its north-south orientation when current flows through it. This is called attractive impact of the current. We are aware that the compass needle is made of a thin magnet. The opposite poles of this needle will attract each other and repel each other when it comes into contact with another magnet. As a result, the needle displays the deflection. In this instance, the compass needle deflects as a result of the wire acting like a magnet.
3.Do you believe that plastic bags can be separated from trash using an electromagnet? Explain.
3.Do you believe that plastic bags can be separated from trash using an electromagnet? Explain.
Answer:
An electromagnet cannot separate the plastic bags because the magnet does not attract them. The magnet can only attract magnetic materials like iron, and plastic bags are not one of them.
4.Draw a circuit diagram to represent the circuit that is displayed.
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4.Draw a circuit diagram to represent the circuit that is displayed.
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Answer:
5.Above figure shows four cells fixed on a board. Make a battery out of four cells by drawing lines to show how you will connect their terminals with wires.
5.Above figure shows four cells fixed on a board. Make a battery out of four cells by drawing lines to show how you will connect their terminals with wires.
Answer:
6.In the circuit depicted in Figure, there is no glowing bulb. Can you pinpoint the issue? To make the lightbulb glow, make the necessary adjustments to the circuit.
6.In the circuit depicted in Figure, there is no glowing bulb. Can you pinpoint the issue? To make the lightbulb glow, make the necessary adjustments to the circuit.
Answer:
In the circuit over, the bulb is associated on one or the other side.
7.When the switch in the circuit depicted in Figure is closed, will the compass needle exhibit deflection?
7.When the switch in the circuit depicted in Figure is closed, will the compass needle exhibit deflection?
Answer:
No, the magnetic field is not created until current flows through the circuit, and the compass needle does not deflect when the circuit is closed.
8.Using the cell holder depicted in Figure, a switch, and a bulb, Sana constructed an electric circuit. The light did not turn on when she turned the switch to the "ON" position. Aid Sana in locating the circuit's potential flaws.
8.Using the cell holder depicted in Figure, a switch, and a bulb, Sana constructed an electric circuit. The light did not turn on when she turned the switch to the "ON" position. Aid Sana in locating the circuit's potential flaws.
Answer:
The following could be the reasons:
i) A loose connecting wire.
ii) An exhausted electric cell.
iii) A malfunctioning switch.
iv) A depleted cell power supply.
9.The circuit depicted in Figure
When the switch is moved to the "ON" position, in what order will the bulbs A, B, and C glow?
9.The circuit depicted in Figure
When the switch is moved to the "ON" position, in what order will the bulbs A, B, and C glow?
Answer:
When the switch is "ON," all of the bulbs light up at the same time.
