32. P = V * I
P = 230 * 4 = 920 w
In short, Your Answer would be: 920 w
33. I = P/V
I = 48/12 = 4 A
In short, Your Answer would be: 4 Ampere
34. Now, for this part you've given Voltage & Power, and you need to calculate Current & Resistance, so you could apply two equations here:
(i) For finding Current = P/V
(ii) For resistance = V²/P
So, Current for Bulb of Study Lamp = 60/230 = 0.260 A
Resistance of Bulb of Study Lamp = 230²/60 = 881.67 Ohm
In similar manner, substitute the known values (Power & Voltage) in each case, you'll have your answers!
35. We know, P = V²/R
P = 230²/48
P = 1102.08 w
Hope this helps!
