Homework for XII/group B/VIDYARTHI/Friday/28-09-2018

Q1. An AC is given as   i = 10 sin ωt  with .0.02 sec as time period . Draw the AC showing the mean value and RMS value .

Q2. Prove that mean value for the full cycle of an AC is zero .

Q3. The RMS voltage  of the power supply that we use in India is 220 volt . What will be it’s peak value ? Also find the mean value .

Q4. Why AC is dangerous ?

Q5.  An AC   i = 10 sin 314t  is connected to a resistor of resistance 10 Ω   . Find the potential drop across the resistor .

Q6.  An AC   i = 10 sin 314t  is connected to an inductor  of self induction of  10 Henry  . Find the potential drop across the inductor .

Q7.  An AC   i = 10 sin 314t  is connected to a capacitor of 10 μF   . Find the potential drop across the capacitorr .

Q8. Draw the graph showing the variation between

(I) inductive reactance and angular frequency

(ii) capacitive reactance and angular frequency