Quiz ( 6 ) Ch. ( 1 )

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

• The illumination of L1 increases & L2 increases

• The illumination of L1 increases & L2 decreases

• The illumination of L1 decreases & L2 increases

• The illumination of L1 decreases & L2 decreases

In the opposite circuit, the value of current I_{1 and} I₂ respectively are ...............

• -8 A and 5 A

• 8 A and -5 A

• 4 A and -1 A

• -4 A and 1 A

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

• 9 Ω

• 1.5 Ω

• 4.5 Ω

• 3 Ω

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

• Increases and then decreases

• Remains constant

• Decreases

• Increases

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

• ( a )

• ( b )

• ( c )

• ( d )

In the opposite circuit:

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

• Bulb A doesn't change and bulb B increases

• Bulb A decreases and bulb B increases

• Bulb A increases and bulb B doesn't change

• Bulb A increases and bulb B increases

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

• 38.5 Ω & 6 Ω

• 52.5 Ω & 10Ω

• 7.5 Ω & 6 Ω

• 2.7 Ω & 10 Ω

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

• 12 V

• 1.5 V

• 15 V

• 3 V

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

• 6 Watt

• 9 Watt

• 18 Watt

• 27 Watt

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

• Zero Ω

• 5 Ω

• 10 Ω

• 1 Ω