Electric Power And Energy Question Preview (ID: 52045)
Energy Consumed By Electric Appliance.
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Kilo watt =
a) 1000 watt
b) 100 watt
c) 10 watt
d) 1 watt
The inscription 100 watt of a lamp indicates :
a) rated voltage
b) rated power
c) rated energy
d) rated current
A Fridge (220V ,10A ) consumes electric energy of value
a) 2200 Kwhr
b) 2.2 Kwhr
c) 220kwhr
d) 110 kwhr
The electric meter of EDL measures the consumed electric energy in
a) Joule
b) WattHr
c) KwattHr
d) wattsec
A lamp marked (6V ,4A),It consumes a power is :
a) 10watt
b) 24watt
c) 48watt
d) 2watt
Lead lamp is preferable on the incandescent lamp because :
a) Dissipate less voltage
b) Dissipate less current
c) Dissipate less energy
d) None of the above choices
Electric energy is written as E=
a) PI
b) PU
c) PR
d) Pt
The unit of power in SI unit is :
a) Joule
b) Volt
c) Watt
d) Ampere
A resistor consumes electric energy and transforms it to heat is called :
a) Ohm's effect
b) Hook's effect
c) Ampere's effect
d) Joule's effect
the law of power is P =
a) RI
b) EI
c) UI
d) RU
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