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Electric Circuits and Currents
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General Science for Class 7
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Electric Circuits and Currents
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Electric Circuits and Currents
If two cells are connected in series, the bulb will glow more
brightly
dimly
sharply
colorfully
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Electric Circuits and Currents
The larger the current, the greater the number of
volts
amperes
pascal
ohms
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Electric Circuits and Currents
To overcome the resistance
power has to be used
force has to be used
more current has to be used
energy has to be used
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Electric Circuits and Currents
In alighted bulb there is a flow of electrons in
filament
socket
glass
holder
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Electric Circuits and Currents
In a parallel circuit the resistance decreases with increase in number of
resistors
bulbs
circuit
battery
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Electric Circuits and Currents
If electric wires and appliances are overheated due to high voltage of electric current they can
catch fire
burn
freeze
both a and b
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Electric Circuits and Currents
A block of impure copper is used as
cathode
anode
posit rode
nematode
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Electric Circuits and Currents
The wire coil acts as an
electric wire
electric plate
electromagnet
conductor
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Electric Circuits and Currents
Neutral wire is a wire which has
voltage
current
no current or voltage
both current and voltage
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Electric Circuits and Currents
Adding more bulbs to a circuit with one battery would
make them brighter
make them sharper
make them dimmer
make them colorless
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