Question
A toroid has a core (non-ferromagnetic) of inner radius
23 cm and outer radius 28 cm, around which 4000 turns of a wire are wound. If the current in the wire is 9 A, find the magnetic field (a) inside the core of the toroid (b) outside the toroid?Solution
The correct answer is A
5, 24, 47, 76, 113, ?.
The ratio of milk and water in a mixture of 28 litres is 4 : 3. Find the quantity of milk in the mixture?Â
945, 824, 680, 511, ?, 90
Quantity I: The distance a truck travels from point P to point Q, given that a bike covers the same distance in 2 hours. The tru...
A principal of ₹5000 is invested at a simple interest rate of 8% per annum. What will be the interest earned after 3 years?
What will come in place of the question mark (?) in the following series?
120, 128, 144, 168, 240
Rohan ranks seventh from the top and twenty sixth from the bottom in a class. How many students are there in the class?
A contractor was tasked with constructing a bridge within 45 days. To complete the project, he initially hired 75 workers. However, after 40 days, he di...
If x = a cos³ θ, y = a sin³ θ, then dy/dx at any θ is:
Find the simplified value of the expression:
32 + 12 x 108 ÷ 12 + 4 + 32 ÷ 16 x 3
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