Advertisements
Advertisements
Question
State the condition when it is advantageous to connect cells in series.
Advertisements
Solution
It is advantageous to connect cells in series if the external resistance is large enough compared to the total internal resistance of cells.
RELATED QUESTIONS
In 10 s, charge of 25 C leaves a battery, and 200 J of energy are delivered to an outside circuit a result.
What current flows from the battery?
A p.d. of 6 V is applied to two resistors of 3 Ω and 6 Ω connected in parallel. Calculate:
(a) the combined resistance
(b) the current flowing in the main circuit
(c) the current flowing in the 3 Ω resistor.
Find the effective resistance in the following circuit diagrams (Fig.):
The circuit diagram in fig shows two coils of an insulated copper wire wound on a cardboard tube. G is a center zero galvanometer.
(a) Describe what will happen when th e swi tch K is cl osed for severa l
seconds and then opened again .
(b) What will be the effect of repeating the experiment with an iron placed in the tube?
1 kWh = `(1 "volt" xx 1 "ampere" xx "_________")/1000`
Define the following:
Conventional current
