Physicsmedium · Past Paper
One Joule is equal to how many ergs?
A10^5 ergs
B10^7 ergs
C10^6 ergs
D10^3 ergs
✓ Correct Answer: B — 10^7 ergs
1 Joule = 1 N * 1 m = 10^5 dyne * 10^2 cm = 10^7 dyne-cm = 10^7 ergs.
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