Question

when three 10 ohm resistor are connected in star across a 400 volt,3 phase supply what power should be have of resistors ​

Answer 1

Answer:

Answer

Given,

R

1

=5Ω, R

2

=3Ω, R

3

=2Ω, V=10 Volt

Effective resistance of series combination.

R

s

=R

1

+R

2

+R

3

=10Ω

Now,

Current in Circuit I=I=

R

s

V

=

10

10

=1A

Voltage drop across R

1

, V

1

=IR

1

=1×5=5V

Voltage drop across R

2

, V

2

=IR

2

=1×3=3V

Voltage drop across R

3

, V

3

=IR

3

=1×2=2V