How do you calculate Ohm's Law?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
To calculate using Ohm's Law, identify which two values you know and which one you need to find. For example, if you have a 12-volt battery connected to a 4-ohm resistor and need to find the current, use I = V ÷ R, which gives you 12V ÷ 4Ω = 3A. Always ensure your units are correct: volts for voltage, amperes for current, and ohms for resistance.
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?