The SI unit of electrical resistance is the:
Current Electricity
Original Khojo Papers practice question — not from a past board paper.
30 Ω
No citable source has been recorded for this record. Treat it as practice material, not as fact.
By Ohm's law R = V ÷ I = 12 ÷ 0.4 = 30 Ω.
From the same topic and chapter, at a similar level.
The SI unit of electrical resistance is the:
Current Electricity
State Ohm's law and the conditions under which it holds.
Current Electricity
A potential difference of 12 V is applied across a resistor of 4 Ω. Calculate the current flowing through it.
Current Electricity
Three resistors of 2 Ω, 3 Ω and 5 Ω are joined in series across a 20 V supply. Calculate the current in the circuit and the potential difference across the 3 Ω resistor.
Current Electricity
Two resistors of 6 Ω each are connected in parallel. Calculate the equivalent resistance.
Current Electricity
An electric bulb is marked 100 W, 220 V. Calculate the current it draws and its resistance in normal use.
Current Electricity