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प्रश्न
State the condition when it is advantageous to connect cells in series.
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उत्तर
It is advantageous to connect cells in series if the external resistance is large enough compared to the total internal resistance of cells.
संबंधित प्रश्न
Fill in the folloing blank with suitable words:
A current is a flow of ............... .For this to happen there must be a ............... circuit.
If the amount of electric charge passing through a conductor in 10 minutes is 300 C, the current flowing is:
(a) 30 A
(b) 0.3 A
(c) 0.5 A
(d) 5 A
(a) With the help of a circuit diagram, obtain the relation for the equivalent resistance of two resistances connected in parallel.
(b) In the circuit diagram shown below, find:
(i) Total resistance.
(ii) Current shown by the ammeter A
Tick (✓) the correct choice among the following :
There are 500 turns and 2000 turns in the primary and secondary coil of a
transformer respectively. If th e output voltage is 1000 V, how large is the
input voltage?
State whether the following statement is True or False:
The SI unit of charge is the coulomb.
An electric bulb is marked 100 W, 250 V. How much current will the bulb draw if connected to a 250 V supply?
Assertion (A): Electric current will not flow between two charged bodies when connected if their charges are the same.
Reason (R): Current is the rate of flow of charge.
