Calculate the velocity ratio of a screw jack of pitch 0.3cm if the length of the tommy bar is 21cm

In the circuit diagram above, calculate the current in the 12 Ω resistor if the cell has an emf of 12V and an internal resistance of 1Ω

What is the reading of the vernier calipers shown above?

The figure above shows a uniform wood of weight 200N and length 50m. It is pivoted at one end and suspended by a cord at the other end at an angle of 30 degr...

In the curve above, PQRST represents an alternating voltage of frequency 50Hz. The time interval between points P and R on the graph is

A spring of length 25cm is extended to 30cm by a load of 150N attached to one of its end, what is the energy stored in the spring?

In the figure above, XY is of length 1m, The value of R at balance point Z is Options

If two parallel conductors carry currents flowing in the same direction, the conducts will

In the figure above if the atmospheric pressure is 760mm, the pressure of the chamber G is