ELECTRIC CHARGE FIELD TERM 1 PHYSICS MCQ QUESTIONS I CASE STUDY I ASSERTION REASONINGI vikas sir I JEE I neet

Drawings I and II show two samples of electric field lines

Assertion At some given instant I_1 and I_2 both are 2A each. Then, I at this should be zero. Reason : There is a phase difference of I_1 and I_2 functions.

Three long straight parallel wires are kept as shown in figure. The wire (3) carries a current I. (i) The direction of flow of current I in wire (3), is such that the net force, on wire (1), due to other two wires, is zero (ii) By reversing the direction of I, the net force, on the wire (2) due to the other two wires, becomes zero. What will be the directions of current I, in the two cases? Also obtain the relation between the magnitudes of current I_1 , I_2 and I.

Following types of compounds (as I, II) (I) CH_3 CH = CHCH_3 (II) CH_3 - underset(CH_2 CH_3)underset(|) CH -OH are studied in terms of isomerism in

The centre of mass is defined as vecR=1/Msum_im_ivecr_i . Suppose we define centre of charge as vecR_c=1/Qsum_iq_Ivecr_i where q_i represents the ith charge placed at vecr_i and Q is the total charge of the sytem a. Can a centre of charge of two charge system be outside the line segment joining the charges? b. If all the charges of a system are in X-Y plane? c. If all the charges of a system lie in a cube, is it necessary that the centre of charge be in the cube?

Assertion: If an inductor coil is connected to DC source, the current supplied by it is I_(1) . If the same coil is connected with an AC source of same voltage. Then current is I_(2) , then I_(2) lt I_(1) . Reason: In AC circuit, inductor coil offers more resistance.

Calculate the value of the electic currents I_1, I_2 and I_3 in the given electrical network. a. I_1 = ……….. b. I_2 = ………… c. I_3 = ……………

Define the term electric potential. State its S.I. unit.

The electric field in a region of space is given by E= 5i + 2j N//C . The electric flux due to this field through an area 2m^(2) lying in the Yz plane, in S.I. units, is

Find the dimensions of a. electric field E, magnetic field B and magnetic permeability mu_0 . The relavant equations are F=qE, FqvB, and B=(mu_0I)/(2pi alpha), where F is force q is charge, nu is speed I is current, and alpha is distance.