What exactly is Ohm's Law?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage across it and inversely proportional to its resistance. The formula is V = I × R, where:
- V = Voltage (volts)
- I = Current (amperes)
- R = Resistance (ohms)
This law helps predict how changing voltage or resistance affects current flow. For example, if you increase voltage while keeping resistance constant, current increases proportionally. Ohm's Law is fundamental for designing and troubleshooting electrical circuits.
Suggested Q&A
General · Class 12- GeneralClass 12Electric Field at Centre of Ring with Non-Uniform Charge Distribution. Four quadrants carry linear charge densities: +2λ, −2λ, +λ, −λ. Find electric field at centre.
- GeneralClass 12P°(hexane) = 408 Torr, P°(heptane) = 141 Torr. x(hexane) = 0.300. Find Y₆ and Y₇.
- GeneralClass 122N₂O₅(g) → 4NO₂(g) + O₂(g). Initial P = 50 mmHg; P at 30 min = 87.5 mmHg. Find P at 60 min.
- GeneralClass 12What is the difference between psychosis and neurosis?
- GeneralClass 12What is the difference between prism and a pyramid?
- GeneralClass 12What is the difference between phrase and clause?