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Electricity
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In paint spraying which object is positively charged and which object is negatively charged?
the object to be painted is positively charged and the paint is negatively charged
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what is an insulator?
a material which does not allow the charge to flow through them
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how is the ammeter connected to a circuit?
ammeter is connected in series with the load.
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what is the formula/equation for current?
I = Q/t
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What kind of circuit is this?
series circuit
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what happens when two unlike charges are placed near each other?
unlike charges attract each other
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What is the unit of charges?
Coulomb
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what is a positively charged atom?
it has less number of electron than proton
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what happens to the other bulbs in a series circuit if one of the bulbs is broken?
the other bulbs will not light up
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If the ammeter reading in the figure is 2A, how much current flows through all three bulbs?
current in bulb1 = current in bulb 2 - current in bulb 3 = 2A
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what happens to the current in a series circuit if more cells is added to it while keeping the number of bulbs constant?
the current in the circuit will increase
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what is a conductor?
a material which allows the charge to flow through them
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what is a neutral atom?
an atom that has equal number of proton and electron
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What is the unit of current?
Ampere
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What device is used to measure electric current?
ammeter
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what happens when two like charges are placed near each other?
the like charges repel each other
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what is a parallel circuit?
a parallel circuit is a circuit which have junctions where the electrical pathway divides or branches oout
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which device is used to control electrical circuits?
switch
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