Electric Circuit

Q.

Name some sources of direct current

Q.

A fused bulb does not glow. Why?

Q.

Current is measured by an instrument called

1. ammeter

2. voltmeter

3. galvanometer

4. Wheatstone bridge

Q.

The device used for measuring potential difference is known as

1. Galvanometer

2. Ammeter

3. Potentiometer

4. Voltmeter

Q. Which of the following are the necessary items required to build a simple circuit with a tester to verify the flow of electricity?

1. Wire
2. Cell / Battery
3. Bulb
4. Switch

Q. Which of the following relations represent the Ohm's law?
$V=$Voltage, $I=$Current, $R=$Resistance

1. $\frac{I}{V}=R$
2. $\frac{V}{I}=R$
3. $V=I\times R$
4. $I=R\times V$

Q. The symbol given in the following figure represents a _________ in an electric circuit.

1. switch in ON position
2. fuse
3. bulb
4. battery

Q. Ohm's law states that is directly proportional to the but not the other way around.

1. current
2. resistance
3. voltage
4. resistivity

Q.

why a cell always gives a smaller amount of current ?

Q.

defination and explination of electrical circut

Q.

In which of the following circuits will the bulb or the bulbs glow the brightest?

1. A simple circuit with one bulb(A) and one cell(B)

2. A simple circuit with one bulb(A) and two cells(B, B).

3. A simple circuit with two bulbs(A, A) and one cell(B).

4. A simple circuit with two bulbs(A, A) and two cells(B, B).

Q.

Explain electric potential by taking the analogy to liquid flow.

Q. Which of the following electrical component is not a measuring device?

1. Rheostat
2. Ammeter
3. Voltmeter
4. Ohmeter

Q.

Pls can you explain what happens when you connect two cells in parallel? Thx

Q.

When electric current is passed through an incandescent bulb, the bulb gives light. Identify the proper reason.

1. Chemical effect of current

2. Electric effect of current

3. Heating effect of current

4. Magnetic effect of current

Q.

A series circuit has only one conducting path for the electrons that move through, it is a parallel circuit has multiple conducting paths.

1. True

2. False

Q. To protect the iron used in bridges and automobiles from corrosion, it is electroplated with

1. aluminium
2. copper
3. zinc
4. gold

Q. What do you mean by chemical effect of electric current?

Q.

In which of the following circuits will the bulb or the bulbs glow the brightest?

1. A simple circuit with one bulb and one cell

2. A simple circuit with two bulbs and two cells

3. A simple circuit with one bulb and two cells

4. A simple circuit with two bulbs and one cell

Q.

What is the function of a switch ?

Q. An electric circuit cannot control the path for the flow of electric current.

1. True
2. False