Recently Active Electricity And Magnetism Questions

when a charged body is brought near a neutral conducting body, the induced charge that appears on the nearer surface of the conducting body is always equal and opposite to the charge that has been brought in ...

can anyone post the correct graph of resistivity vs temp. of an electrolyte ..... ...

Figure represent four option of a current carrying coil in a magnetic field directed towards right. *Image* *Image* a) I>II>III>IV b) I>III>II>IV c) II>III>I>IV d) I>III>IV>II Plz.... Gudie ...

Q in the circuit diagram each resistor is of resistance 5 ohm . the points A and B r connected to terminals of a cell of emf 9 volt and internal resistance 2/3 ohm. *Image* find heat produced in cell and the current in resist ...

Please visit the following links to see CBSE BOARD 2009 solutions for Chemistry code 56/1 and Physics code 55/3 papers. http://topperlearning.com/userfiles/XII_chem_board_2009_solutions_.pdf http://topperlearning.com/userfile ...

can anyone post the graph of resistance vs temp. of a semiconductor ...

what should be antiproton which is anti particle of proton? ...

Why cannot we use the ampere's circuital law while finding the magnetic field of a wire of finite length? Though we can very easily use it when the wire is of infinite length. ...

This question was asked in today's physics boards: "Draw three equipotential surfaces corresponding to a field that uniformly increases in magnitude but remains constant along z - direction. How are these surfaces different f ...

A solid non conducting sphere has charge distribution as shown in the figure. Radius and mass of sphere is R and m.. a constant electric field E0 is switched on as shown and sphere is displaced by small angle θ. there is fri ...

*Image* THE ANSWER IS 27μC ???? ...

A square loop of side a with a capacitor C is located beween 2 current carrying long wires.The current I in wire varies as I=Iosin ωt *Image* Calculate max current in loop I am getting \frac{\mu _{o}}{\pi }CI_{o}a\omega ^{2} ...

not to test phy but to test if u remember the results.. Q. From a point h above the uniformly charged disc (charge density σ)a charge +q is thrown with some velocity v such that it reach B with same velocity. radius of disc ...

i want to finish a few chapters of class 12 before the school begins. after that i will try 2 strengthen my concepts of class 11..... thank you.. ...

*Image* the figure shows a circular coil of N turns and radius a connected to a battery E through a rheostat . the rheostat has length L and resistance R .the resistance of the coil is r . a circular loop of radius a' and res ...

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WHY THE MAGNETIC FIELD LINES IN A TOROID R CONFINED TO WITHIN IT's CORE...BUT NOT SO IN CASE OF SOLENOID.... ...

find capacitance b/w point A and B area-A separation b/w plates d *Image* ...

A pt charge q is placed inside a conducting spherical shell of inner radius 2R and outer radius 3R at a distance R from the centre of the shell.Find the potential at the centre ...

silver and copper voltmeter are connected in parallel with a battery of e.m.f. 12V in 30 minute 1 gm of silver and 1.8 gm of copper are liberated the enegy supplied by the battery is? ...

a current is passed through a resistor. let K1 and K2 represent the average kinetic energy of conduction electrons and metal ions respectively. a)K1<K2, b) K1=K2 ,c) K1>K2 ,d) any of these three may occur ...

the resistivity of copper is 0.015 micro ohm-m at 300 K addition of each atomic % of Ni and Ag causes an increase in resistivity by 0.012 micro ohm-m and 0.16 micro ohm-m respectively calculate resistivity of Cu-Ni-Ag alloy a ...

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the space between the parallel plates of a cpacitor is filled with a dielectric.each molecule of the dielectric is assumed to have the form of a dumbbell with a length `l`l whose ends carry +q and -q. the number of molecules ...

STATEMENT 1: During the charging of a capacitor(with the help of a battery), the battery is only energising the circuit and not supplying any charge to the circuit. STATEMENT 2: When capacitor is charged with the help of a ba ...

Calculate the capacity, between A and B , of the infinite network... I am getting answer as 2 μ F...but answer is given as 4 μ F.. In the figure all the capacities are in μF.. *Image* My metod: C0=1 + (2*Co) ---------- (Co ...

a long horizontal metallic rod with length along the east-west direction is falling under gravity. The potential difference b#w it's 2 ends will a] increase with time b]0 c]constant d]decrease with time ...

An observer A and a charge Q are fixed in a stationary frame F. Another observer B is fixed in a frame f, which is moving wrt to F. then a) both A and B will observe electric fields. b) both A and B will observe magnetic fiel ...

A triangular loop of side "L " carries current I . It is placed in a magnetic field B such that the plane of the loop is in the direction of B . The torque on the loop is ...

thread closed due to incorrect data....... sorry[2] ...