Recently Active Electricity And Magnetism Questions

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A particle of mass having negative charge q moves along an ellipse around a fxed positive charge Q so that its maximum and minimum distances from fixed charge are equal to r1 and r2 respectively. Calculate angular momentum L ...

*Image* the cells given in the circuit are 5v each and have internal resistance of 0.2 ohms, then the reading in the ideal volt meter is?? ...

consider two lamps with resistance R1 and R2 which are coneeted in parallel R1>R2 if the lamp of resistance R1 now burns out, how will the illumination produced change? will the illumination remain same or decrease or incr ...

*Image* sum 22, part (b,c&d) along the string should have a component of the force by the charge...... but the answer is zero, ...

Two point charges P1and P2 are moving along positive x-axis. Charge and mass of P1 and P2 are (2uc,60ug)and (-5uc,30ug). At particular instant , if the distance of separation is 9mm and the respective speeds are 400ms-1and 13 ...

What is the field at any point inside a solid metallic sphere of uniform positive charge distribution of 1000 C (mm)-3? Radius of metallic sphere = 3000km *Image* ...

*Image* Rajnikanth faces 2 villians opposite to him. He has one bullet( diagram given in box). He throws a coin with a velocity 3 m/s and accelaration 2 m/s2. He shoots a bullet with 200 m/s and this bullets hits the coin in ...

diode and ressitor are connected to 2volt ,I=20mA,then it is reversed I=50mA,what is forward resistance of diode and resistor ,give me hint ...

A plane capacitor charged to 10kV is moving along its planes with velocity 10m/s.Estimate the magnetic field inside the capacitor,if the planes are separated by 1cm distance. ...

A cone made of insulating material has total charge Q and spread uniformly over its sloping surface.Calculate energy reqd to bring up a small test charge q from infinity to apex of cone.The cone has slope length L ...

how do we calculate the flux thru a conical surface???? ...

when a +ive pt charge is placed near a un charged conducting ball which was hung by a conducting thread a non conducting thread ...

why electrostatic experiments not work well in humid days. how can insulator get charged? ...

wat will happen when a glass rod rubbed with a silk and placed near a ideal insulated sphere a non ideal insulated sphere a conducting sphere please explain with diag.pleaseeeeeeeeeeeee ...

what will happen to a person sitting in a stationary car if lightning strikes the car... ...

q1. ) simple:) *Image* Bn = Bn-1/2 mass m , charge q, etc etc... take nething missing.. >>if nth radius is 64 times the first radius,,, find n. n ε natural no.s ...

*Image* A thin ring made of a magnetic material of permeability has a mean diameter d and supports a winding of N turns. The crosssectional area of the ring is equal to S. The ring has a cross-cut of width b such that b < ...

condenser blocks d passage of AC DC both none a capacitor wrks in DC circuit AC " both none ...

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Current in inductance-=0.8A while in capacitance it is 0.6A .What is max. current withdrawn from source???? *Image* ...

*Image* find equivalent resistance across AB (the two points at the base of the outermost equilatral trianngle..) hint: use principle of symmetry. ...

Q1 A solid spherical region having a spherical cavity whose diameter R is equal to the radius of spherical region ,has total charge Q.Find electric field at point at distance x from the centre of spherical region and lying on ...

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*Image* A long copper wire carries a current i. what is the magnetic field at a distance x from the centre of the wire ...

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There is a linear current density K= 2a A/m in z direction , on the X=0 plane, what is the field due to this current in two regions X>0 and X< 0 ? ...

There is a linear current density K= 2a A/m in z direction , on the X=0 plane, what is the field due to this current in two regions X>0 and X< 0 ? ...

irodov q no 3.133 page no 123 ...