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Management of Natural Resources — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceManagement of Natural Resources3 Marks
Question
Differentiate between the time varying and constant currents.
✓

Answer

Time varying current
Constant current
1.
It is the current of magnitude varying with time.
It is the current of constant magnitude.
2.
It reverses its direction while flowing in a circuit.
It flows in one direction in the circuit.
3.
The frequency of current is 50Hz or 60Hz depending upon the country.
The frequency of constant current is zero.
4.
Safe to transfer over longer city distances and can provide more power.
Voltage of constant current cannot travel very far until it begins to lose energy.
 

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