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Q.

What is meant by “series combination” and “parallel combination” of resistances?


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a

In a series combination, resistances are connected by an end to end such that the current flowing through them is equal. In a parallel combination, the resistances are connected to get an equal voltage.

b

In a parallel combination, resistances are connected by an end to end such that the current flowing through them is equal. In a series combination, the resistances are connected to get an equal voltage.

c

In both cases, resistances are connected by an end to end such that the current flowing through them is equal.

d

None of these. 

answer is A.

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Detailed Solution

In a series combination, resistances are connected by an end to end such that the current flowing through them is equal. In a parallel combination, the resistances are connected to get an equal voltage.is meant by “series combination” and “parallel combination” of resistances.
Resistors can be connected in two ways: in series or parallel Series combination. In a series connection, resistance is connected one by one, with one end connecting directly to the other end of the other resistor.  In a series connection current through all the resistors is the same, or you can say every electron is moving in the same direction, but the voltage for each resistor is different. In parallel connections, ends of resistance are connected at the same point.  In a parallel connection, the current through all the resistors is different, but the voltage across all the resistors remains the same since they are connected from the same point.
 
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