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Quiz ( 6 ) Ch. ( 1 )

Total questions: 12

Worksheet time: 3hrs 0mins

Name
Class
Date
1.

In the opposite circuit two lamps L1 & L2, what happens in the illumination of two lamps when the slider moves towards X position.

a)

The illumination of L1 increases & L2 increases

b)

The illumination of L1 increases & L2 decreases

c)

The illumination of L1 decreases & L2 increases

d)

The illumination of L1 decreases & L2 decreases

2.

In the opposite circuit, the value of current I1 and I2 respectively are ...............

a)

-8 A and 5 A

b)

8 A and -5 A

c)

4 A and -1 A

d)

-4 A and 1 A

3.

In the opposite circuit, the equivalent resistance between points K and L will be .........

a)

9

b)

1.5

c)

4.5

d)

3

4.

In the opposite circuit shown in the figure, when closing the switch the ammeter reading ..................

a)

Increases and then decreases

b)

Remains constant

c)

Decreases

d)

Increases

5.

Which of the following graphs represents the correct relation between the consumed power and the time?

a)

( a )

b)

( b )

c)

( c )

d)

( d )

6.

In the opposite circuit:

What happens to the brightness of bulbs A & B when the slider moves from point X to Point Y ?

a)

Bulb A doesn't change and bulb B increases

b)

Bulb A decreases and bulb B increases

c)

Bulb A increases and bulb B doesn't change

d)

Bulb A increases and bulb B increases

7.

The equivalent resistance of the opposite circuit if the key is opened then closed will be .............

a)

38.5 Ω & 6 Ω

b)

52.5 Ω & 10Ω

c)

7.5 Ω & 6 Ω

d)

2.7 Ω & 10 Ω

8.

The potential difference between the two points ( a ) and ( b ) will be ....................

a)

12 V

b)

1.5 V

c)

15 V

d)

3 V

9.

In the shown circuit, the consumed electric power by the resistor 3 Ω equals ............

a)

6 Watt

b)

9 Watt

c)

18 Watt

d)

27 Watt

10.

The equivalent resistance for the following circuit is ..................

a)

Zero

b)

5

c)

10

d)

1

11.

Kirchhooff's 1st law represents the conservation law of ..........

a)

Energy

b)

Charge

c)

Current

d)

Matter

12.

Three equal resistors, the equivalent resistance of them when they are connected in series is 27 but when they are connected in parallel the equivalent resistance of them becomes 3 Ω, so the value of each resistor is ..............

a)

3

b)

6

c)

9

d)

12