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A potential difference of 2 volt is applied between points A and B as shown in the network shown in the figure.calculate 1) equivalent resistance of the network across the points A and B 2)the magnitude of currents in the arms AFCEB and AFDEB?
26' A vehicle starting its motion from rest travels at a uniform acceleration of 5ms-2 for a certain time and
travels with the attained uniform velocity for another certain period of time. Then it decelerates uniformly at
5ms-2 and stops after a certain time. If the total time spent is 25s and the average velocity for the whole
motion is 20ms-1 , find the time that the vehicle travelled at uniform velocity.
The equation of a particle executes s.h.m y=8sin (pi t+pi÷3)find a the amplitude
The period
Maximum velocity
If a copper metal of diameter 5cm and length 1m is stuck into the base of a hot water bath such that the heat of the water at 80°C in transmitted to the other end. Calculate the temperature gradient.
The instaneous value of voltage in an a. c circuit at any time t seconds is given by v=100sin(50πt-0.523) V. Find
1:The peak to peak voltage, the frequency and the phase angle
2:the voltage when t=0
3:the voltage when t=8ms
4:the times in the first cycle when the voltage is 60V and -40V
5:the first time when the voltage is maximum
Three point charges are arranged along the y-axis in a vacuum. The topmost charge bears a charge of -4.0 , the middle charge has a charge of 3.0 , and the bottom carries a charge of -7.0 . What is the magnitude and direction of the net electrostatic force that the middle charge experiences if top-middle is separated by 0.2 m of distance and middle-bottom is also separated by 0.2 m of distance?
Two tiny, identical metal balls carry charges of 6.0 and -14.0 , and are 4 cm apart from each other. What is the force of attraction between these balls?
(Q)Consider a one-dimensional box extends from x = x0 to x = x0 + L, where x0 6= 0.
Would the expression for the wave function of a particle in this box be any different
from those in the box that extends from x = 0 to x = L? Would the energy levels be
different?
A boat moves 3.0 km due north and then moves 1.0 km due south. The time for this trip is half an hour. What is the average velocity of the boat?
A pendulum takes 10 seconds to swing
through 2 complete cycles.
a. How long does it take to complete
one cycle?
b. What is its period?
c. What is its frequency?
d. What is the angular frequency?
e. What does the position N represents?
