26) What is the resistance of Light Dependent Resistor (LDR), if the intensity of light is increased?

27) Which formula is used to calculate the power of a DC circuit?

28) Calculate the hot resistance of 200W / 250V rated lamp.

29) What is the value of resistance in an open circuit?

30) Which resistor the lowest current flows in a parallel circuit having the values of 50 Ohm, 220 Ohm, 450 Ohm and 560 Ohm connected with supply?