What are the advantages of resistance?
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Advantage of connections of resistors (more than one) in series or in parallel is that the desired resistance can be realized from known resistances.
Connection of resistance reduces current and protects the instruments from getting high currents. Resistance also increases battery life as less current is drawn. Also, there are many disadvantages like power is wasted.
Resistance carrying electric current generates heat energy, which is used for useful purposes. So electrical energy is converted into heat energy. Without resistance this conversion is not possible. So control over the circuit is possible with a resistance.
Connection of resistance reduces current and protects the instruments from getting high currents. Resistance also increases battery life as less current is drawn. Also, there are many disadvantages like power is wasted.
Resistance carrying electric current generates heat energy, which is used for useful purposes. So electrical energy is converted into heat energy. Without resistance this conversion is not possible. So control over the circuit is possible with a resistance.
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