Study the following current time graphs from two different sources.(i)

1.	Study the following current time graphs from two different sources.(i) Use above graphs to list word differences between the current in the two cases.(ii) Name the type of current in two cases(iii) Identify one source each for these currents.(iv) What is meant by the statement that "the frequency of current in India is 50 Hz ?"
Answer» (i) (a) In (I) current is constant while in (II) current is variable. (b) In (I) current is in the positive state while in (II) current is in both states. (ii) l-Direct current II - Alternating current (iii) I-from battery II - From power supply in our houses (iv) Because current type is alternating current that's why frequency varies form 0 to 50 Hz.

Study the following current time graphs from two different sources.(i) Use above graphs to list word differences between the current in the two cases.(ii) Name the type of current in two cases(iii) Identify one source each for these currents.(iv) What is meant by the statement that "the frequency of current in India is 50 Hz ?"

Answer»

(i) (a) In (I) current is constant while in (II) current is variable.

(b) In (I) current is in the positive state while in (II) current is in both states.

(ii) l-Direct current

II - Alternating current

(iii) I-from battery

II - From power supply in our houses

(iv) Because current type is alternating current that's why frequency varies form 0 to 50 Hz.

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