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A helium nucleus is sent at high speed toward a metal sphere with a charge of 1.5 nC what is the force acting on the helium nucleus when it is 3.5 mm away from the metal sphere
1. A parallel plate capacitor consists of two rectangular plates, each with an area of and are separated from each other by a 2.00 mm thick dielectric with a dielectric constant of 5.26. The capacitor is connected to a 12.0 V battery. How much energy is stored in the capacitor?
a car starts at rest covering a distance of 200m. It continues moving with a constant velocity for another 300m before coming to rest in the last 100m . Determine the velocity of the car when it was moving with a constant velocity
A final linear velocity of COM for a sphere is found to be x Ωr, when it is made to fallon a surface (coefficient of friction μ). Initially the sphere was rotating with an angular
velocity of about its own horizontal axis The instance it is made to fall on the
surface, it begins to skid first and then starts rotating without skidding.
(a) Find the value of x?
(b) Distance covered before reacting their final linear velocity is y =( r2ω2) / μg
Find the value of y?
A 80 turns closed circular coil having a radius of 20 cm is placed perpendicular to uniform magnetic field of intensity 50 Oe. Determine the amount of charge flowing through the coil, if the coil is rotated through 180° with respect to any diameter.
Resistance of the coil is given 2Ω.
Show that potential function U= x2+y2+2z2 satisfies Laplace equation
An iron ring has a X-section of 2 cm2 and a mean diameter of 20 cm. An air-gap of 0.4 mm has been cut across the section of the ring. The ring is wound with a coil of 300 turns . If the total magnetic flux is 0.20 mWb. The relative permeability of iron is 1000. Determine the current flowing through the coil
A capacitor is a device used to store electric charge. Typically, commercial capacitors have two conducting parts close to one another, separated by a significant gap. i. What is the capacitance of a parallel plate capacitor having plates of area 1.80 m2 that are separated by 0.05 mm of Pyrex glass (Dielectric constant=5.6)? ii. How much charge does it hold when 20.00 V is applied to it?
A point charge with magnitude of –3q are brought close to a point charge with magnitude of +q. Sketch the electric field lines of the system. Include the direction of the electric field in the sketch.
Based on your understanding, answer these questions: i. At a free space, two charged particles with equals magnitude but opposite charge are moving in uniform magnetic field at the same velocity, v. Discuss and compare the acceleration and component of magnetic forces acting on these particles. ii. Why does a permanent magnet bar distort cathode ray tube television when they are brought close to each other?
