A long wire hangs vertically with its upper end clamped, when a torque of 4.5 Nm is applied to free end through an angle of `10^(@)`. Then work done b

Question

A long wire hangs vertically with its upper end clamped, when a torque of 4.5 Nm is applied to free end through an angle of `10^(@)`. Then work done b

A long wire hangs vertically with its upper end clamped, when a torque of 4.5 Nm is applied to free end through an angle of `10^(@)`. Then work done by the twisted wire is,
A. `pi//4J`
B. `22.5 J`
C. `pi//2J`
D. `pi//8J`

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

Related Questions

A wire suspended vertically from one of the its ends is stretched by attaching a weight of 200 N to the lower end. The weight stretches the wire by 1

2 Answers 4 Views

A uniform rope of mass `0.1` kg and length `2.5` m hangs from ceiling. The speed of transverse wave in the rope at upper end at a point `0.5` m distan

2 Answers 5 Views

A flywheel revolves at 100 rev/min, a torque is applied to the flywheel for 10 s If the torque increases the speed to 200 rev/min, then the angular ac

2 Answers 6 Views

The force constant of a wire is k and that of another wire is . 2k When both the wires are stretched through same distance, then the work done

2 Answers 10 Views

A wire suspended vertically from one end is stretched by attaching a weight of 20 N to the lower end. The weight stretches the wire by 1 mm. How much

2 Answers 4 Views

If the work done in stretching a wire by 1 mm is 2J, then work necessary for stretching another wire of same material but with double radius of corss-

2 Answers 5 Views

A long wire hangs vertically with its upper end clamped, when a torque of 2 Nm is applied to the free end, it is twisted through an angle of `30^(@)`.

2 Answers 6 Views

The work done in stretching a wire by 0.1 mm is 3 J. Then the work done in stretching another wire of the same material but with double the radius and

2 Answers 4 Views

The work done to stretch a wire through `1xx10^(-3)m` is 2J. Then the work done to stretch another wire of same material having half length and double

2 Answers 5 Views

A mass of 10m long wire is 100gm. If a tension of 100N is applied, what is the time taken by transverse wave to travel from one end to the other end o

2 Answers 4 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - D
`omega =(1)/(2) tau theta =(1)/(2) xx (4.5xx10pi)/(180)=(pi)/(8)`

4 views Answered 2023-02-05 15:29