which is the perfect voltage bulb for this experiment. (make a circuit using a battery(cell), wires, and a bulb. note down the brightness of the bulb using one and two cells)

Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way

Manometers are good examples of measuring instruments, nowadays they are not as common as before. a)-capacitive probe gauges b)-gravitational gauges deformation ) gauges d)-digital gauges

The sum of the normal stresses does not change as the stress state rotates through an angle. a)-trune b)- false