Two identical spanners are used to loosen identical nuts

PHYSICS · Single correct · CBSE · Physics · System of Particles and Rotational Motion · System of Particles and Rotational Motion

Problem

Two identical spanners are used to loosen identical nuts. In case I, a

20\,\text{N}

force is applied at

0.20\,\text{m}

making

90^{\circ}

with the spanner. In case II, a

30\,\text{N}

force is applied at

0.15\,\text{m}

making

60^{\circ}

with the spanner. In case III, a

25\,\text{N}

force is applied at

0.25\,\text{m}

making

30^{\circ}

with the spanner. Which case produces the greatest torque? (a) Case II (b) Case I (c) All three produce equal torque (d) Case III