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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
what is a parallel circuit?
a parallel circuit is a circuit which have junctions where the electrical pathway divides or branches oout
what happens to the other bulbs in a series circuit if one of the bulbs is broken?
the other bulbs will not light up
how is the ammeter connected to a circuit?
ammeter is connected in series with the load.
What kind of circuit is this?
series circuit
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
What is the unit of charges?
Coulomb
What is the unit of current?
Ampere
what is the formula/equation for current?
I = Q/t
What device is used to measure electric current?
ammeter
what happens when two unlike charges are placed near each other?
unlike charges attract each other
what happens when two like charges are placed near each other?
the like charges repel each other
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
which device is used to control electrical circuits?
switch
what is an insulator?
a material which does not allow the charge to flow through them
what is a conductor?
a material which allows the charge to flow through them
what is a neutral atom?
an atom that has equal number of proton and electron
what is a positively charged atom?
it has less number of electron than proton
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