JEE Main202229 Jul 2022Evening ShiftPhysicsMagnetic Properties of MatterActual
The vertical component of the earth's magnetic field is 6 × 10 - 5 T at any place where the angle of dip is 37 ° . The earth's resultant magnetic field at that place will be (Given tan 37 ° = 3 4 )
Options
- A8 × 10 - 5   T
- B6 × 10 - 5   T
- C5 × 10 - 4   T
- D1 × 10 - 4   T
Correct answer
D. 1 × 10 - 4   T
Step-by-step solution
Given here: The vertical component of the earths magnetic field B V = 6 × 10 - 5   T and angle of dip δ = 37 ° . For vertical component, B V = B sin δ Putting the values, we have ⇒ 6 × 10 - 5 = B 3 5 Earth's magnetic field at that place as B = 10 × 10 - 5   T = 10 - 4   T