Question:
An infinite line charge produces an electric field of 9 × 106 N/C at a distance of 20 cm. The linear charge density will be :
An infinite line charge produces an electric field of 9 × 106 N/C at a distance of 20 cm. The linear charge density will be :
Updated On: Mar 27, 2025
- 10-3 C/m
- 10-4 C/m
- 10-2 C/m
- 10-5 C/m
Hide Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
The correct option is (B):
10-4 C/m
Was this answer helpful?
0
0
Top Questions on Current Density
- A current flows through a cylindrical conductor of radius \( R \). The current density at a point in the conductor is \( j = \alpha r \) (along its axis), where \( \alpha \) is a constant and \( r \) is the distance from the axis of the conductor. The current flowing through the portion of the conductor from \( r = 0 \) to \( r = \frac{R}{2} \) is proportional to:
- CBSE CLASS XII - 2025
- Physics
- Current Density
- The unit of current density is
- Bihar Board XII - 2025
- Physics
- Current Density
- A spherical conducting shell of inner radius r₁ and outer radius r₂ has a charge Q. A charge q is placed at the centre of the shell. The surface charge density on outer surface of the shell is:
- CUET (UG) - 2023
- Physics
- Current Density
- Match List I with List II
LIST I LIST II A. Conductance I. [ML3 T-3A-2] B. Current density II. [M-1L-3 T3 A2] C. Specific resistance III. [M0L-2 T0A¹] D. Electrical conductivities IV. [M-1L-2 T3 A2] Choose the correct answer from the options given below:- CUET (UG) - 2023
- Physics
- Current Density
- Two currents 0.5 mA and 5 mA flow towards the junction in a circuit and three currents 1 mA, x and 2 mA flow away from the junction. The value of x (in mA) is
- AP POLYCET - 2020
- Physics
- Current Density
Questions Asked in CUET exam
- A number is increased by 25% and then decreased by 20%. What is the net % change?
- CUET (UG) - 2025
- Percentage
- Pointing to a man, Rani says, "He is the son of my mother's only daughter.” How is the man related to Rani?
- CUET (UG) - 2025
- Blood Relations
- A person walks 10 m North, then turns right and walks 5 m, then turns right again and walks 10 m. What direction is he facing now?
- CUET (UG) - 2025
- Direction sense
- If \( 3 \times 4 = 25 \), \( 5 \times 2 = 27 \), \( 6 \times 3 = 39 \), then what is \( 7 \times 5 = ? \)
- CUET (UG) - 2025
- Logical Reasoning
- Choose the word that best fits the blank in the sentence below: "Despite his remarks, the audience found his ideas intriguing and thought-provoking."
- CUET (UG) - 2025
- Vocabulary
View More Questions