The potential difference across AB dropped as the value of R grew, and therefore the potential gradient across AB decreased. E' = kl is the formula for this....
to state 
, is(1) $\frac{1}{3}$ (2) $\frac{2}{3}$ (3) $\frac{2}{5}$ (4) $\frac{2}{7}$ Solution: Answer is (3) Given process is isobaric so, $\mathrm{dQ}=\mathrm{n} \mathrm{C}_{\mathrm{p}} \mathrm{d} \mathrm{T}$...
The correct option is a) shall increase along the positive x-axis.
Correct answers are: b) torque τ’ caused by F about z’ axis is along $-\hat{k}$ c) torque τ caused by F about the z-axis is greater in magnitude than that about the z-axis
Correct answer is d) $PR-Q^{2}/R$ and e) $(R + Q)/P$
Answer: The correct answer is option c) C Explanation: Centre of mass represents the mean position of the matter of a system. In the given figure half of the sphere is hollow whereas the second half...
The mass of the particle executing simple harmonic motion is $m$. The particle's displacement at a given time $t$ is given by $x=A \sin \omega t$ Velocity of the particle is given as...
Answer: The correct option is d) a bangle. Explanation: The mass of a bangle is distributed along the circumference of the ring shape of the bangle as it is a hollow shape. The center of mass is...
mass, fastened to the end of a steel wire of unstretched length 
, is whirled in a vertical circle with an angular velocity of 
at the bottom of the circle. The crosssectional area of the wire is 
Calculate the elongation of the wire when the mass is at the lowest point of its path.Mass is given as $m=14.5 \mathrm{~kg}$ Length of the steel wire is given as $\mid=1 \mathrm{~m}$ Angular velocity is given as $v=2$ rev/s Cross-sectional area of the wire is given as $A=0.065 \times...
Answer a) The amount of work done when an electric charge Q moves against a potential difference V is: W = Q V = W = Q V = W = Q V = W = Q V (1) We all know that current I = Q/T. IT = Q (2)...
Answer Because of their low resistance, the connecting wires leading to the heater are somewhat warmer than the wires that heat the heater element. This results in a flow of minimal heat generation...
Answer Because an electric bulb's filament is comprised of tungsten, which would quickly burn if it came into touch with oxygen in the air, it is not filled with air. Unreactive gases like argon and...
Answer a) The following is the formula for calculating the amount of heat produced: I2Rt = H b) Assumed R equals 20 5 amps = I t = 30 seconds We are aware of this. I2Rt = H We know H = 15000J by...
(a). No, no technology has yet been devised to shield a body from gravity because gravity is a property of all matter and is independent of medium. As a result, the gravitational forces would be...
The number of coil turns (n) is 100. Each turn's radius (r) is 8 cm (0.08 m). The magnitude of the current (I) passing through the coil is 0.4 A. The magnitude of the magnetic field at the coil's...