Sub-topic 1
2025 · National Quarterfinal
Free
Current from a series-parallel resistor network with internal resistance
Read past contest →
Sub-topic 2
2013 · National Preliminary
Premium
Terminal voltage of a battery from emf, current and internal resistance
Read past contest →
Sub-topic 3
2013 · National Preliminary
Premium
Current for maximum power transfer from a battery to a load
Read past contest →
Sub-topic 4
2013 · National Preliminary
Premium
Internal resistance of a battery from two terminal-voltage/current readings
Read past contest →
Sub-topic 5
2013 · National Preliminary
Premium
Maximum power transfer condition for a battery and load (true/false)
Read past contest →