দুটি কয়েল X এবং Y এমনভাবে সংযুক্ত থাকে যে যখন x এ কারেন্ট পরিবর্তন হয় তখন emf E Y তে প্রবর্তিত হয়...

In fig potential difference between the points X and Y, when C_(1) = 2 muF , C_(2) = 3 muF , C_(3) = 4 muF , C_(4) = 5 muF and e.m.f of battery is 5 V.

Two coils X and Y are linked such that emf E is induced in Y when the current in x is changing at the rate I' (= dI//dt) . If a current I_(0) is now made to flow through Y , the flux linked with X will be

A potentiometer circuit shown in the figure is set up to measure e.m.f. of a cell E . As the point P moves from X to Y the galvanometer G shows deflection always in one direction, but the deflection decreases continuously until Y is reached. In order to obtain balance point between X and Y it is necessary to

A uniform magnetic field existsin region given by vec(B) = 3 hat(i) + 4 hat(j)+5hat(k) . A rod of length 5 m is placed along y -axis is moved along x - axis with constant speed 1 m//sec . Then the magnitude of induced e.m.f in the rod is :

The magnitude ( but not the sign ) of the standard reduction potentials of two metals X and Y are : Y^(2)+2e^(-) rarr Y |E_(1)^(c-)|=0.34V X^(2)+2e^(-) rarr X |E_(2)^(c-)|=0.25V When the two half cells of X and Y are connected to construct a cell, eletrons flow from X to Y . When X is connected to a standard hydrogen electrode (SHE) ,electrons flow from X to SHE . If standard emf (E^(c-)) of a half cell Y^(2)|Y^(o+) is 0.15V , the standard emf of the half cell Y^(o+)|Y will be

A battery of emf epsilon volt internal resistance r ohm is joined in series with two resistances X and Y ohm in a closed circuit. A standard cell of emf 1.06 V and a galvanometer are joined in series and the combination is connected across X . The galvanometer shows no deflection when X = 60 Omega and Y = 224 Omega or when X = 40 Omega and Y = 140 Omega Calculate the values of E and r

A cell E_1 of emf 6V and internal resistance 2 Omega is connected with another cell E_2 of emf 4V and internal resistance 8 Omega (as shown in the figure). The potential difference across points X and Y is :

A rectangular loop os sides of length l an db is placed in x-y plane. A uniform but it me varying manetic field of strength exists in space. The magnitude of induced e.m.f. at time t is:

A parallel-plate capacitor has plate area A , the distance between its two plates x and y is d and a dielectric slab of dielectric constant epsilon_(r) is filled between the regions. It is connected to a cell of emf E . If the dielectric slab is removed, then