Question

230 V 50HZ
A. C
from
20 & resistance and 30mH inductance
Connectal in series and the circuit is
find
from
supply
& Reactance across the inductance
") voltage across the resistance
iii) voltage
iv) reactive and active power
s
across the inductance
apparent power
v) Power factor​

Answer 1

Answer:

20 & resistance and 30mH inductance

Connectal in series and the circuit is

find

from

supply

& Reactance across the inductance

") voltage across the resistance

iii) voltage

iv) reactive and active power

s

across the inductance

apparent power

v) Power factor

Answer 2

Answer:

V1 = 220V

P1 = 60W

V2= 180V

P2= ?

V3= 240V

P3=?

Firstly let us calculate the resistance of bulb. Resistance will be constant in each case.

P1 =V1²/R

60= 220²/R

R= 220²/60

= 806.6R

P2= V2²/R

= 180²/806.6

= 40W

P3= V3²/R

= 240²/806.6

= 71W