RE-TEST SERIES 1

Define form factor.

• rms/average value

• average value/rms

• max value/rms

• rms/max value

Full form of RMS

Power factor=------------------

• C/Z

• R/Z

• L/Z

• Z

A resistance of 10 ohm and inductance of 0.1 H are connected in series across a supply of 220 V, 50Hz .Determine current .

• 6.82 I

• 6.67 I

• 5.52 I

• 5.89 I

What is the inductive reactance of an a.c circuit 0.08H inductance ,if the frequency is 60 Hz.

• 26.12ohm

• 28.14ohm

• 30.16 ohm

• 32.18 ohm

A capacitor of 100uF is connected across a 230 V,50Hz a.c supply. Calculate reactance of the capacitor and rms value of current.

• 31.83 ohm and 6.52 ohm

• 29.26 ohm and 7.23 ohm

• 31.83 ohm and 7.23 ohm

• 31.83 ohm and 5.56 ohm