0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Question

A conducting wire frame is placed in a magnetic field which is directed into the plane of the paper (figure). The magnetic field is increasing at constant rate. The directions of induced currents in wires AB and CD are
222471_456c54ceef3643f292036db38fbe7e39.png
  1. B to A and D to C
  2. A to B and C to D
  3. A to B and D to C
  4. B to A and C to D
  5. answer required

A
answer required
B
B to A and D to C
C
A to B and C to D
D
A to B and D to C
E
B to A and C to D
Solution
Verified by Toppr

Consider the surface facing upwards having points A, B, C and D in anticlockwise direction when viewing towards the surface from above. Let this be S
flux = S×B
As the flux increases, by Lenz's Law the induced current will be in the direction C B A D C, so as to oppose the increase in flux.

Was this answer helpful?
3
Similar Questions
Q1
A conducting wire frame is placed in a magnetic field which is directed into the paper. The magnetic field is increasing at a constant rate. The directions of induced current in wires AB and CD are



View Solution
Q2
A conducting wire frame is placed in a magnetic field which is directed into the plane of the paper (figure). The magnetic field is increasing at constant rate. The directions of induced currents in wires AB and CD are
222471_456c54ceef3643f292036db38fbe7e39.png
View Solution
Q3
A conducting wire frame is placed in a magnetic field which is directed in to the paper. The magnetic field increasing at a constant rate. The directions of induced current in wires AB and CD are:
1352769_a7e5ba041b284948ac023fb09d5e6d19.png
View Solution
Q4
Figure shows two long wires carrying equal currents I1 and I2 flowing in opposite directions. Which of the arrows labeled A,B,C and D correctly represents the direction of the magnetic field due to the wires at a point located at an equal distance d from each wire?
167124_e6e53bafd1844febaf77093f91bb0fbb.png
View Solution
Q5
Two long parallel wires A and B separated by a distance d, carry currents i1 and i2 respectively in the same direction. Write the following steps in a sequential order to find the magnitude of the resultant magnetic field at a point 'P', which is between the wires and is a distance 'x' from the wire A.
(All the physical quantities are measured in SI units)
(a) Note the given values of i1,i2, d and x.
(b) Write the formula to find the magnetic field due to a long straight current carrying wire i.e. B=μ0i2πr
(c) Find the directions of the magnetic field at 'P' due to two wires A and B, using right hand thumb rule.
(d) Determine the magnetic field at P due to wire A, using B1=μ0i12πx
(e) If the directions of magnetic field are same, then the resultant magnitude is equal to the sum of B1 and B2.
(f) Determine the magnetic field B2 due to wire B at point P, ie. B2=μoi22π(dx)
(g) If the directions of magnetic fields are opposite to each other, then the resultant magnitude is equal to the difference of B1 and B2.
View Solution