The resistors R₁, R₂, R₃ and R₄ in the figure given below are all equal in value.

What would you expect the voltmeters A, B and C to read assuming that the connecting wires in the circuit have negligible resistance?

You are given one hundred 1 Ω resistors. What is the smallest and largest resistance you can make in the circuit using these?

You are supplied with a number of 100 Ω resistors. How could you combine some of these resistors to make a 250 Ω resistor?

Four resistances of 16 ohms each are connected in parallel. Four such combinations are connected in series. What is the total resistance?

If the lamps are both the same in the figure given below and if A₁ reads 0.50 A, what do A₂, A₃, A₄ and A₅ read?