Q. 234.0( 12 Votes )

# An electrical tec

Answer :

Potential difference across the circuit = 1kV = 1000V

Capacitance of each capacitor = 1 μF

Potential difference each capacitor can withstand = 400V

Capacitance required across the circuit = 2 μF

Assume n number of capacitors are connected in series and further m number of such series circuits are connected in parallel to each other.

As the potential difference in the circuit is 1000V so the potential difference across each row of n capacitors is 1000V, as the potential difference each capacitor can withstand is 400V,

Therefore, 400V × n = 1000V

n = 1000V/400V = 2.5~3capacitors in each row.

Now,

Capacitance of each row = μF

As there are m column of three capacitors, which are connected in parallel.

Hence, equivalent capacitance of the circuit is + ……….m times = Since, Required capacitance = 2 μF m = 6

Total number of capacitors = 3 × 6 = 18.

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