1. Electric Potential Difference and Electric Current
SNC1P
Findlay
University level theoretical questions

2. Rank the circuits illustrated according to the brightness of the identical bulbs, from brightest to dimmest.
A, B, C
B, A, C
C, B, A
Equal Brightness
End

3. What happens to the brightness of bulb A when the switch is closed and bulb B lights up?
Becomes brighter
Becomes dimmer
Stays the same
Turns off
End

4. In which of the circuits shown does a current exist to light the bulb?1 2 3 4 5
End

5. Is the following label on a household product cause for concern?
“Caution: This product contains tiny, electrically charged particles moving at speeds in excess of 100,000,000 kilometres per hour.”
YES!
NO!
End

6. What will happen to the brightness of identical bulbs A & B when bulb C is unscrewed?
They will go out.
They will become brighter.
They will become dimmer.
No change.
TRY IT!
End