In the circuit to the right, a battery is connected to a resistor, and a light b
ID: 2104315 • Letter: I
Question
In the circuit to the right, a battery is connected to a resistor, and a light bulb in parallel with a switch. The switch begins open (infinite resistance) as shown.
What happens to the light bulb when the switch is closed?
Before the switch is closed, the light bulb is on.
When the switch is closed, the light bulb gets dimmer but remains on.
Before the switch is closed, the light bulb is on.
When the switch is closed, the light bulb gets brighter.
Before the switch is closed, the light bulb is off.
When the switch is closed, the light bulb turns on.
Before the switch is closed, the light bulb is on.
When the switch is closed, the light bulb turns off.
Before the switch is closed, the light bulb is on.
When the switch is closed, the light bulb explodes.
Before the switch is closed, the light bulb is off.
When the switch is closed, the light bulb remains off.
Before the switch is closed, the light bulb is on.
When the switch is closed, the battery explodes.
Before the switch is closed, the light bulb is on.
When the switch is closed, the light bulb remains the same brightness.
Before the switch is closed, the light bulb is off.
When the switch is closed, the light bulb explodes.
Before the switch is closed, the light bulb is off.
When the switch is closed, the battery explodes
A)Before the switch is closed, the light bulb is on.
When the switch is closed, the light bulb gets dimmer but remains on.
B)Before the switch is closed, the light bulb is on.
When the switch is closed, the light bulb gets brighter.
C)Before the switch is closed, the light bulb is off.
When the switch is closed, the light bulb turns on.
D)Before the switch is closed, the light bulb is on.
When the switch is closed, the light bulb turns off.
E)Before the switch is closed, the light bulb is on.
When the switch is closed, the light bulb explodes.
F)Before the switch is closed, the light bulb is off.
When the switch is closed, the light bulb remains off.
G)Before the switch is closed, the light bulb is on.
When the switch is closed, the battery explodes.
H)Before the switch is closed, the light bulb is on.
When the switch is closed, the light bulb remains the same brightness.
I)Before the switch is closed, the light bulb is off.
When the switch is closed, the light bulb explodes.
J)Before the switch is closed, the light bulb is off.
When the switch is closed, the battery explodes
Explanation / Answer
When the switch is open....Current flows throughe bulb...hence it is on...
But when the switch is closed, it offers a path with zero resistance, hence no currecnt flows through the bulb and turns off...
SO the currect option is :
Before the switch is closed, the light bulb is on.
When the switch is closed, the light bulb turns off.
D)Before the switch is closed, the light bulb is on.
When the switch is closed, the light bulb turns off.