A conducting circular loop of resistance `20Omega` and cross - sectional area `20xx10^(-2) m^2` is placed perpendicular to a spatially uniform magnetic field B. which varies with time t as B = 2 sin `(50 pit) ` . Find the net charge flowing through loop in 20 ms starting from t = 0
A
0.5 C
B
0.2 C
C
0 C
D
0.14 C
Text Solution
Verified by Experts
Topper's Solved these Questions
QUESTION PAPER 2020
WB JEE PREVIOUS YEAR PAPER|Exercise PHYSICS (CATEGORY-III)|3 Videos
QUESTION PAPER 2020
WB JEE PREVIOUS YEAR PAPER|Exercise PHYSICS (CATEGORY-III)|3 Videos
QUESTION PAPER 2007
WB JEE PREVIOUS YEAR PAPER|Exercise PHYSICS|50 Videos
Similar Questions
Explore conceptually related problems
A circular conducting coil of radius a and resistance R is placed with its plane perpendicular to a magnetic field. The magnetic field varies with time according to the equation B=B_(0)sinomegat . Obtain the expression for the induced current in the coil.
A closed circular coils of average radius 10 xx 10^-2 m is placed normal in a uniform magnetic field of intensity 100 xx 10^-4 T. Determine the amount of charge flowing through the coil if it is turned through 180^@ about one of its diameters, giveii that the resistance of the coil is 2 Omega .
A rectangular coil of area 50 xx 10^-4m^2 has 100 turns. A magnetic field 10^-2 wb//m^2 (uniform) is applied perpendicular to the plane of the coil. The field is withdrawn in 40 ms. Find the e.m.f. inducedin the coil.
A coil of area 0.15 m^2 and 100 turns is placed perpendicular to a magnetic field, The field changes from 5 xx 10^-3 Wbm^-2 to 2 xx 10^-3 Wbm^-2 in a time interval of 30 millisecond. Find the induced emf in the coil.
A magnetic field B= 2t + 4t^(2) (where t= time) is applied perpendicular to the plane of a circular wire of radius r and resistance R. If all the units are in SI the electric charge that flows through the circular wire during t=0s to t= 2s is
Current I flows through a wire depends on time t as follows I=3 t^2+2t+5 How much charge flows through the cross section of the wire from t=0 to t=2 s ?
A square loop of wire of side 10 cm is placed at angle of 45^(@) with a magnetic field that changes uniformly from 0.2 T to zero in 1 second. Find the current induced in the loop of resistance 1 Omega .
A copper wire of diameter 0.04 in. and length 50 cm is bent in the form of a circular loop. The plane of the loop is normal to a uniform magnetic field which is increasing with time at a constant rate of 100 G s^(-1) . What is the rate of joule heating in the loop? [Resistivity of copper =1.7xx10^(-8)Omega.m, 1" in."=2.54cm ]
WB JEE PREVIOUS YEAR PAPER- QUESTION PAPER 2020-PHYSICS (CATEGORY-II)