Question

An automobile engine develops 100 Kw when rotating at a speed of 1800 rpm. The torque delivered by the engine is

• A. $\frac { 10 ^ { 2 } } { 6 \pi } \mathrm { Nm }$
• B. $\frac { 10 ^ { 4 } } { 6 \pi } \mathrm { Nm }$
• C. $\frac { 10 ^ { 6 } } { 6 \pi } \mathrm { Nm }$
• D. $\frac { 10 ^ { 8 } } { 6 \pi } \mathrm { Nm }$

Answer 1

Answer: (B)

$\frac { 10 ^ { 4 } } { 6 \pi } \mathrm { Nm }$

Answer 2

Here, P = 100 kW = 100 × $10 ^ { 3 }$ W = $10 ^ { 5 } \mathrm {~W}$

As