Moving Charges & Magnetism Worksheets
Worksheet4.01
(BiotSavart Law)
General Instructions
CBSE, NEET, PSEB, HSEB etc.

Type01: Theory & Conceptual Questions
Ques01:
State BiotSavart law and express this law in vector form.
(CBSE OD 2017)
Type02: Numerical Problems
Ques02:
A wire carries a steady current of 50 A as shown. Find the magnetic field caused by a 1 cm segment of this wire at a point P which is 1 m away from it.
Ques03:
A small current element Idℓ with dℓ = 2 k̂ mm and I = 2 A is centered at the origin. Find magnetic field dB at the following points
(i) on the xaxis at x = 3 m
(ii) on the xaxis at x = 6 m
(iii) on the zaxis at z = 3 m
Ques04:
An element Δℓ = Δx î is placed at the origin and carries a large current I = 10 A. What is the magnetic field on the yaxis at a distance of 0.5 m? Δx = 1 cm.
(NCERT ; CBSE OD 2019)
Ques05:
An element Δℓ = Δx î is placed at the origin and carries a current I = 2 A. Find out the magnetic field at a point P on the yaxis at a distance of 1 m due to the element Δx = 1 cm. Also, give the direction of the field produced.
(CBSE D 2009 C)
Ques06:
A wire carries a steady current of 50 A as shown. Find the magnetic field caused by a 1 cm segment of this wire at a point P which is 1 m away from it.
Ques07:
A wire placed along the northsouth direction carries a current of 8 A from south to north. Find the magnetic field due to a 1 cm piece of wire at a point 200 cm northeast from the piece.
Ques08:
A wire placed along the eastwest direction carries a current of 10 A from west to east direction. Determine the magnetic field due to a 1.8 cm piece of wire at a point 300 cm northeast from the piece.
ANSWER KEY
1. Refer Notes
2. 50 x 10^{9} T (k̂)
3. (i) 4.44 x 10^{11} T (ĵ) (ii) 1.11 x 10^{11} T (ĵ) (iii) 0
4. 4 x 10^{8} T (k̂)
5. 2 x 10^{9} T (k̂)
6. 30 x 10^{9} T (k̂)
7. 1.4 x 10^{9} T (k̂)
8. 1.4 x 10^{9} T (k̂)
MCQs Quiz
Quiz on BiotSavart Law
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