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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
A magnet may attract or repel by
another magnet
electric current
resistor
dynamo
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Electric Circuits and Currents
If two bulbs are attached in parallel circuit, they would glow
brightly
dimly
equally
continuously
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Electric Circuits and Currents
When small hammer is attracted by electromagnet, the bell
sparks
vibrates
stops
strucks
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Electric Circuits and Currents
The source of energy involves
electric cell
battery
switches
both a and b
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Electric Circuits and Currents
In electric motors, a coil or a wire carrying an electric current produces
electronic field
resistance
magnetic field
electronic charge
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Electric Circuits and Currents
The higher the voltage, the more
force to each electron
power to each proton
energy to each proton
energy to each electron
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Electric Circuits and Currents
All electric objects we see around us like electric bell, electric motor, telephone and loudspeaker use electricity to make
voltage
current
magnetism
electromagnets
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Electric Circuits and Currents
A positive terminal and a negative terminal are present in a
cell
battery
circuit
bulb
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Electric Circuits and Currents
To remove a steel splinter from a patient’s eye, the surgeon may use
clips
electric current
coils
electromagnets
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Electric Circuits and Currents
When electrons vibrate fast, some of the electrical energy is changed to
light energy
thermal energy
kinetic energy
potential energy
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