Electricity The value of equivalent resistance between the points A and B in the given
circuit, will be –
(1) 6R
(2) 4R/11
(3) 11R/4
(4) R/6
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 3 Solution : -. |
Electricity Suppose five resistances, each of 10 ohm, are provided t o you. You are free
to get the desired value by combining them. The desired value will lie in
between
(1) 2 ohm to 50 ohm
(2) 20 ohm to 40 ohm
(3) 12 ohm to 50 ohm
(4) 10 ohm to 60 ohm
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 1 Solution : -. |
Electricity What is the equivalent resistance of the following arrangement between M
and N
(1) R/2
(2) R/3
(3) R/4
(4) R/6
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 2 Solution : -. |
Electricity Out of two bulbs 50W - 220 V and 100W-220V, which one will glow brighter if
(a) connected in series (b) when connected in parallel
(1) (a) 50 W (b) 100 W
(2) (a) 100 W (b) 100 W
(3) (a) 100 W (b) 50 W
(4) none of the above
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 1 Solution : -. |
Electricity The power of electric power station is 200 mega watt , the elect rical energy produced by it daily will be
(1) 200 megawatt hour
(2) 4800 megawatt hour
(3) 4800 megawatt
(4) 4800 joule
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 2 Solution : -. |
Electricity Out of two bulbs 50 W – 220 V and 100 W –220 V, which one will glow brighter
(a) When connected in series
(b) When connected in parallel
(1) (a) 100 W, (b) 50 W
(2) (a) 50W, (b) 100 W
(3) (a) both will glow similar (b) 100 W
(4) none of t he above
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 2 Solution : -. |
Electricity The unit of electrical energy is
(1) watt
(2) killowatt
(3) kilowatt per hour
(4) kilowatt hour
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 4 Solution : -. |
Electricity Two wires each carrying current i are shown. The magnetic field at P (midway
between the wires) is described by which statement?
(1) Magnetic fields are in opposite direction and net field is equal to zero.
(2) Magnetic fields due to two wires are in the same direction
(3) Magnetic fields are in opposite direct ion but net field is not zero
(4) magnetic fields are in the same direction and equal to two times the field
due to one wire.
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 1 Solution : -. |
Electricity An AC generator is connected to an electric appliance. In 10 revolutions of the armature the current in the appliance changes direction :
(1) 5 times
(2) 10 times
(3) 20 times
(4) 40 times
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 3 Solution : -. |
