Electric Current and its Effects Test

Result

Electric Current and its Effects Test - 5

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Weekly Quiz Competition

Question 1
1 / -0

Symbol of closed switch is :

A

B

C

D

Solution

(a) Battery
(b) Closed switch
(c) Open switch
(d) Single cell
Question 2
1 / -0

Choose the symbol of battery:

A

B

C

D

Solution

Option (a) : Cell
Option (b) : Battery
Option (c) : AC Source
Option (d) : Voltmeter

A battery is a combination of cells and hence is represented by a symbol showing multiple cells.

Hence, the correct option is B.
Question 3
1 / -0

Which of the symbols in figure represent devices used to measure currents?

A
(a) and (c)

B
(a) only

C
(a) and (b)

D
(c) only

Solution

Ammeter measures current.
(a) : Ammeter
(b) : Voltmeter
(c) : Galvanometer
Question 4
1 / -0

Figure shows:

A
Resistance and variable resistance

B
Resistance and bulb

C
Bulb and galvanometer

D
Bulb and voltmeter

Solution
Question 5
1 / -0

Match the columns

A
1-d, 2-c, 3-b, 4-a

B
1-c, 2-b, 3-d, 4-a

C
1-a, 2-c, 3-d, 4-b

D
1-b, 2-c, 3-d, 4-a

Solution

The symbol shown in option 1 represents a load, that in option 2 represents a heater, in option 3 represents a bulb while in option 4 represents a resistance.
Option B
Question 6
1 / -0

Which of the following shows ammeter?

A

B

C

D

Solution

(a) : Galvanometer
(b) : Ammeter
(c) : Single cell
(d) : Open switch
Question 7
1 / -0

Choose the symbol of variable resistance:

A

B

C

D

Solution

According to options given
Option $$A\rightarrow$$ Fixed Resistance
$$B\rightarrow$$ Galvanometer
$$C\rightarrow$$ Variable Resistance
$$D\rightarrow$$ Bulb

Hence Option C
Question 8
1 / -0

Symbol shown in figure represents.

A
Voltmeter

B
Ammeter

C
Alternating current source

D
Direct current source

Solution

The symbol in the above figure represents an alternating current source.
Question 9
1 / -0

Symbol denotes

A
Resistance and voltmeter respectively

B
Plug key and switch respectively

C
Load and Key respectively

D
Tapping key and switch respectively

Solution

The symbol shown in the figure represents a tapping key and a switch respectively.
Tapping key: a light flexible metallic strip provided with contacts so that when it is momentarily pressed an electric circuit is made or broken and when it is released the opposite effect is automatically produced.
Switch: a switch is an electrical component that can disconnect or connect the conducting path in an electrical circuit, interrupting the electric current or diverting it from one conductor to another.
Question 10
1 / -0

Which of the following is a plug key?

A

B

C

D
All of the above

Solution

The following symbols are shown in the circuit diagram:
(a) Plug key
(b) Switch key
(c) Tapping key