Per NCERT, what is MECHANICAL ADVANTAGE (MA) of a simple machine?
AMA = Load × Effort
BMA = Load / Effort — the ratio of the load (force overcome) to the effort (force applied)
CMA = Time taken
DMA = Effort − Load
Answer & Solution
Correct answer: B. MA = Load / Effort — the ratio of the load (force overcome) to the effort (force applied)
Per NCERT Eq. 7.12, MA = load / effort. The other options misstate.
Related questions
Per NCERT, a LEVER consists of three parts. Which is NOT one of them?Per NCERT Example 7.12, a ramp raises a load over a 30 cm step and has a horizontal width Per NCERT, the MECHANICAL ADVANTAGE of an INCLINED PLANE of length L and height h is whichPer NCERT, what is the primary BENEFIT of a fixed pulley if it doesn't reduce the effort fPer NCERT, what is the mechanical advantage of a FIXED PULLEY?Per NCERT, a SIMPLE MACHINE — like a pulley, inclined plane, or lever — does which of the Per NCERT Example 7.10, a weightlifter lifts a 75 kg mass by 2 m in 5 seconds (taking g = Per NCERT, 1 HORSEPOWER (hp) is approximately equal to how many watts?