(a) It indicates the presence of current in the circuit.
(b) The bulb did not glow because the current was not sufficient to make it glow.
(c) Deflection in the magnetic compass will increase.
(d) Deflection in the compass will increase further.
(a) It indicates the presence of current in the circuit.
(b) The bulb did not glow because the current was not sufficient to make it glow.
(c) Deflection in the magnetic compass will increase.
(d) Deflection in the compass will increase further.
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