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Recent questions tagged electrical power and household circuits
+2
votes
1
answer
Two bulbs are rated 60 W, 220 V and 60 W, 110 V respectively. Calculate the ratio of their resistances.
asked
Apr 1, 2019
in
Class 10
by
kratos
electrical power and household circuits
class-10
icse
+3
votes
1
answer
An electrical gadget can give an electric shock to its user under certain circumstance. Mention any two of these circumstances.
asked
Mar 31, 2019
in
Class 10
by
kratos
electrical power and household circuits
electric energy
electricity
household circuits
class-10
icse
power
+2
votes
1
answer
Water in an electric kettle connected to a 220 V supply took 5 minutes to reach its boiling point.
asked
Mar 28, 2019
in
Class 10
by
kratos
class-10
electrical power and household circuits
icse
+1
vote
1
answer
An electric geyser rated 1500 W, 250 V is connected to 250 V line mains. Calculate:
asked
Mar 28, 2019
in
Class 10
by
kratos
electrical power and household circuits
electricity current
electric energy
electricity
household circuits
class-10
icse
power
+2
votes
1
answer
A bulb marked 12 V, 24 W operated on a 12 volt battery for 20 minutes. Calculate:
asked
Mar 25, 2019
in
Class 10
by
kratos
class-10
electrical power and household circuits
icse
+2
votes
1
answer
An electric bulb is rated 100 W for 220 V a.c. supply of 50 Hz. Calculate (i) the resistance of the bulb
asked
Mar 25, 2019
in
JEE
by
kratos
electrical power and household circuits
electricity
jee
class-10
icse
jee mains
alternating current
current electricity
+3
votes
1
answer
Name the factors on which the heat produced in a wire depends when current is passed in it,
asked
Mar 25, 2019
in
Class 10
by
kratos
class-10
electrical power and household circuits
icse
+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
+3
votes
1
answer
How we get electric shock?
asked
Mar 16, 2019
in
Mathematics
by
kratos
electrical maintenance
electrical power and household circuits
icse
+2
votes
1
answer
An electric kettle rated at 220 V, 2.2 kW, works for 3 hours. Find the energy consumed and the current drawn.
asked
Mar 15, 2019
in
Class 10
by
kratos
electrical power and household circuits
class-10
electricity
icse
+3
votes
1
answer
Which part of an electrical appliance is earthed?
asked
Mar 15, 2019
in
Class 10
by
kratos
electrical power and household circuits
class-8
electric energy
electricity
household circuits
class-10
icse
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
A fuse is rated 8 A. Can it be used with an electrical appliance rated 5 kW, 200 V? Give a reason.
asked
Mar 4, 2019
in
Class 10
by
kratos
electrical power and household circuits
class-8
electricity
class-10
icse
+3
votes
1
answer
Why do we get a shock from electricity?
asked
Mar 2, 2019
in
Class 10
by
kratos
electrical power and household circuits
class-8
electricity
class-6
class-10
icse
electrical maintenance
+2
votes
1
answer
Draw a circuit diagram to expain the ring system of house wiring. State two advantage of it.
asked
Feb 27, 2019
in
Class 10
by
kratos
class-10
electrical power and household circuits
icse
+3
votes
1
answer
Calculate the quantity of heat that will be produced in a coil of resistance 75Ω
asked
Feb 22, 2019
in
Class 10
by
kratos
electrical power and household circuits
electric energy
electricity
household circuits
class-10
icse
power
+1
vote
1
answer
What current is taken by a 3 kW electric geyser working on 240 V mains ?
asked
Feb 18, 2019
in
Class 10
by
kratos
electrical power and household circuits
cbse
magnetic effects of electric current
electricity
class-10
icse
+3
votes
1
answer
An electric refrigerator rated 300 W is used for 8 hours a day. An electric iron box rated 750 W is used for 2 hours a day.
asked
Feb 12, 2019
in
JEE
by
kratos
electrical power and household circuits
cbse
magnetic effects of electric current
electric energy
jee
ntse
household circuits
class-10
icse
jee main
power
heat
+3
votes
1
answer
When switch of an electric appliance is put ***, it disconnects 1. the live wire
asked
Feb 10, 2019
in
Class 10
by
kratos
electrical power and household circuits
class-8
electricity
class-7
icse
megnetism
class-10
+1
vote
1
answer
To which wire of a cable in a power circuit should the metal case of a geyser be connected?
asked
Feb 7, 2019
in
Class 10
by
kratos
electrical power and household circuits
cbse
magnetic effects of electric current
class-10
icse
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