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Recent questions tagged electric power
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Two lamps of resistance 30Ω and 20Ω respectively are connected in series in a 110V circuit.
asked
Apr 5, 2019
in
JEE
by
kratos
electricity
jee
electric power
class-10
icse
jee mains
house hold circuits
current electricity
+1
vote
1
answer
In household electric circuit, which of the following statements is/are incorrect
asked
Apr 1, 2019
in
Class 12
by
kratos
electricity current
electricity
electric power
class-10
icse
house hold circuits
class-12
electric current in conductors
+1
vote
1
answer
What are the systems of wiring?
asked
Mar 31, 2019
in
Class 10
by
kratos
electric power
class-10
icse
house hold circuits
electrical maintenance
+2
votes
1
answer
An electric bulb is rated as 100W-250V. What information does it convey? Calculate:
asked
Mar 27, 2019
in
Class 10
by
kratos
class-10
house hold circuits
icse
electric power
+1
vote
1
answer
A lady working in her kitchen received a shock from an electric hot plate. What could be the reason for the shock?
asked
Mar 25, 2019
in
Class 10
by
kratos
class-10
house hold circuits
icse
electric power
+2
votes
1
answer
Express watt hour and kilowatt hour in joule.
asked
Mar 21, 2019
in
Class 10
by
kratos
class-10
house hold circuits
icse
electric power
+2
votes
1
answer
Why should switches always be connected to the live wire?
asked
Mar 21, 2019
in
Class 10
by
kratos
electrical power and household circuits
electric energy
electric power
household circuits
class-10
icse
power
house hold circuits
+2
votes
1
answer
State other ****** units of electric power and express them in watt.
asked
Mar 17, 2019
in
Class 10
by
kratos
class-10
house hold circuits
icse
electric power
+3
votes
1
answer
Why is the filament in an electric bulb coiled?
asked
Mar 16, 2019
in
Class 10
by
kratos
class-10
house hold circuits
icse
electric power
+1
vote
1
answer
A device is used to transform 12V a.c. to 200V a.c. (1) What is the name of this device?
asked
Mar 16, 2019
in
JEE
by
kratos
jee
electric power
electro magnetism
class-10
icse
electromagnetism
house hold circuits
magnetostatics
magnetism
jee mains
+3
votes
1
answer
Observe the given circuit. R1 and R2 are two resistors and R1 = R2 = 4Ω. Emf of the battery E is 10 V.
asked
Mar 15, 2019
in
JEE
by
kratos
electromagnetic induction
electricity
jee
electric power
class-10
icse
jee mains
house hold circuits
alternating current
current electricity
+3
votes
1
answer
Explain why, electric switches should not be operated with wet hands.
asked
Mar 12, 2019
in
Class 10
by
kratos
cbse
magnetic effects of electric current
electric power
class-10
icse
house hold circuits
+2
votes
1
answer
Write down two characteristics of fuse wire.
asked
Mar 6, 2019
in
Class 10
by
kratos
electric energy
circuit breaker
electric power
household circuits
class-10
icse
power
house hold circuits
+1
vote
1
answer
Draw a circuit diagram using dual switches to light staircases electric light and explain its working.
asked
Mar 5, 2019
in
Class 10
by
kratos
class-10
house hold circuits
icse
electric power
+2
votes
1
answer
What type of current is transmitted from the power station?
asked
Mar 4, 2019
in
JEE
by
kratos
electrical power and household circuits
jee
communication systems
electric power
class-10
icse
electromagnetism
jee mains
alternating current
class-12
house hold circuits
+3
votes
1
answer
Find the heat produced in joules when a current of 10 amperes flows through a connecting wire of resistance 2 × 10^-2 ohms
asked
Mar 2, 2019
in
Class 10
by
kratos
class-10
house hold circuits
icse
electric power
+2
votes
1
answer
Three 250W heaters are connected in parallel to a 100V supply, Calculate: (i) Total current taken from the supply.
asked
Mar 1, 2019
in
Class 10
by
kratos
class-10
house hold circuits
icse
electric power
+1
vote
1
answer
A house has 3 tubelights, 2 fans and a television. Each tubelight draws 40W. The fan draws 80W and the television draws 60W.
asked
Feb 27, 2019
in
Class 10
by
kratos
electric energy
electricity
electric power
household circuits
class-10
icse
power
house hold circuits
+1
vote
1
answer
In a building there are 15 bulbs of 45 W, 15 bulbs of 100 W, 15 small fans of 10 W and 2 heaters of 1 kW.
asked
Feb 25, 2019
in
JEE
by
kratos
class-8
jee main 2020
electricity
jee
electric power
class-10
icse
jee mains
house hold circuits
class-12
current electricity
+2
votes
1
answer
Point out two main disadvantages of ‘Tree System’.
asked
Feb 24, 2019
in
Class 10
by
kratos
class-10
house hold circuits
icse
electric power
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