# The center of percussion of the homogeneous rod of length L suspended at the top will be?

32 views
The center of percussion of the homogeneous rod of length L suspended at the top will be?

The center of percussion of the homogeneous rod of length L suspended at the top will be 2L/3.

## Related questions

Center of percussion is?

If a suspended body is struck at the center of percussion, then the pressure on die axis passing through the point of suspension will be?

The center of gravity of a triangle lies at the point of?

Center of gravity of a thin hollow cone lies on the axis at a height of?

Center of gravity of a solid cone lies on the axis at the height?

The center of gravity of a uniform lamina lies at?

State the function of following components of a nuclear power station: i) Moderator ii) Shielding iii) Control rod iv) Coolant

The electrode rod used for welding uses a coating on it

A glass rod when rubbed with silk cloth is charged because?

A number of forces acting at a point will be in equilibrium if?

If two equal forces of magnitude P act at an angle 9°, their resultant will be

If the distance of screen from a CRT to center of deflection plates is 15 cm, the length of deflection plates is 2 cm, the distance between the plates is 1 cm and accelerating voltage is 500 V, deflection sensitivity is   (a) 33.2 V/cm (b) 0.03 cm/V (c) 66.4 V/cm (d) 0.015 cm/V

If both the number of turns and core length of an inductive coil are doubled, then its self inductance will be (a) halved (b) doubled (c) quadrupled (d) unaffected

On the ladder resting on the ground and leaning against a smooth vertical wall, the force of friction will be?

On a ladder resting on smooth ground and leaning against vertical wall, the force of friction will be?

A conductor of diameter d, length 1 consumes a power of W when a current I flows through it. What will be the power consumed if d is doubled, 1 is halved and current is tripled ?

If resistance is 20 Q. and inductance is 27 in a R-L series circuit, then time constant of this circuit will be?

A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart. If the horizontal tension is 1500 kg find the dip in the middle of the span?

A copper wire of length l and diameter d has potential difference V applied at its two ends. The drift velocity is vd . If the diameter of wire is made d/3, then drift velocity becomes

A conductor of length L has current I passing through it, when it is placed parallel to a magnetic field. The force experienced by the conductor will be

What will be the efficiency when the transformer operates at unity power factor and 60% of full load

If 5000 kW power is transmitted at 220 kV in place of 11 kV, reduction in the value of electric current will be (a) 90% (b) 95% (c) 5% (d) 10%

A lamp of 100W at 200V is supplied current at 100 volts. It will be equivalent to the lamp of:   a. 50W b. 40W c. 25W d. 10W

The output of a 2-input NAND gate with high at both the inputs will be • High • Low • High & low • None of the above.

If the transmission line is loaded with leading reactive volt amperes, there will be rise of voltage at the receiving end and this (a) increases (b) decreases (c) remains same with the increase in the length of line (d) none of these

If the supply frequency of a 3-phase induction motor is ‘f’, then frequency of rotor emf at motor slip ‘s’ will be   (a) sf (b) (1 – s)f (c) f/s (d) None of these

A point charge of 120 mC is placed at the centre of a cube. What will be the total flux passing through one face of the cube?  A) 120 mC B) 60 mC C) 20 mC D) 30 mC

The number of poles in a phase induction motor at 50 Hz and running at 1500 rpm will be?

In air-core cable the surge voltage travels approximately at the speed of light and a cable of 100m length gives a delay of a. 0.666μsec b. 0.333μsec c. 1.555μsec d. 1μsec

Voltages phasors at the two terminals of a transmission line of length 70 km have a magnitude of 1.0 per unit but are 180 degree out of phase. Assuming that the maximum load current in the line is 1/5th of minimum 3-phase fault current. Which one of the following transmission line protection schemes ... pick up at 1.25 times the maximum load current (C) Pilot relaying system with directional comparison scheme (D) Pilot relaying system with segregated phase comparison scheme

According to Biot-Savart’s laws the magnetic field at a point due to incremental element of length dl carrying a current is  (A) Inversely proportional to the current carried by the element (B) Directly proportional to the current carried by the element (C) Directly proportional to the square of the distance (D) Inversely proportional to the length of the element

If a signal band limited to fm is sampled at a rate less than 2fm, then the constructed signal will be A) Large in amplitude B) Small in amplitude C) Distorted D) Distortion less

Full load copper loss in a transformer is 1600 watts. At half load the copper loss will be: A) 6400 watt B) 1600 watt C) 800 watt D) 400 watt

In a transformer the voltage regulation will be zero when it operates at (A) unity p.f. (B) leading p.f. (C) lagging p.f. D) zero p.f. leading.

In parallel RLC resonance circuit at resonance the current will be  (1) Minimum (2) Maximum (3) Zero (4) Infinite

The eddy current loss in an AC motor is 100 watts at 50 Hz. Its losses at 100 Hz will be: (A) 25 watts (B) 59 watts (C) 100 watts (D) 400 watts

In a d.c. series motor, the torque developed is 20 Nm at 10A. If the load current is doubled, the new torque will be : -  a) 60 Nm b) 45 Nm c) 80 Nm d) 100 Nm

If the signal does not change at all, its frequency will be  (1) ∞ Hz (2) 0 Hz (3) 1 Hz (4) None of these

A series RLC circuit resonate at 200 Hz. If the capacitance is increased to four times, the circuit will be in resonance at   (a) 100 Hz (b) 200 Hz (c) 400 Hz (d) 800 Hz

A step voltage E is applied to a series R-L circuit. The rate of change of current is maximum at t = _:  (1) Zero (2) Infinity (3) L/R (4) R/L