Options:
- A. resistance
- B. inductance
- C. conductivity
- D. flexibility
View Answer
C. conductivity
Physics
Internal resistance is the resistance offered by________________?
Options:
- A. source of EMF
- B. conductor
- C. resistor
- D. capacitor
View Answer
A. source of EMF
Circuit which gives continuously varying potential is called _______________________?
Options:
- A. complex network
- B. wheat stone bridge
- C. potential divider
- D. all of above
View Answer
C. potential divider
Three bulbs are rating 40W 60W and 100W designed to work on 220V mains. Which bulb will burn most brightly if they are connected in series across 220 V mains ?
Options:
- A. 40 W bulb
- B. 60 W blub
- C. 100 W blub
- D. all will burn equally brightly
View Answer
A. 40 W bulb
There are three bulbs of 60W 100W and 200W which bulb has thickest filament ?
Options:
- A. 100W
- B. 200W
- C. 60W
- D. all
View Answer
B. 200W
Resistance of a wire on increasing its temperature will_________________?
Options:
- A. increase with rise in temperature
- B. decrease with rise in temperature
- C. will remain same
- D. depends upon altitude of experimentation
View Answer
A. increase with rise in temperature
Specific resistance of a wire____________________?
Options:
- A. will depend on its length
- B. will depend on its radius
- C. will depend on the type of material of the wire
- D. will depend on none of the above
View Answer
C. will depend on the type of material of the wire
An electric iron is marked 20 volts 500W. The units consumed by it in using if for 24 hours will be______________?
Options:
- A. 12
- B. 24
- C. 5
- D. 1100
View Answer
A. 12
In the following figure, the terminal potential is ___________________ ?
Options:
- A. zero
- B. 2V
- C. 12V
- D. 36V
View Answer
A. zero
In liquids and gases the current is due to the motion________________?
Options:
- A. negative charges
- B. positive charges
- C. both negative and positive charges
- D. neutral particles
View Answer
C. both negative and positive charges