Answer:
Explanation:
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Answer:
Explanation:
Expression for emf induced = 1 /2 B n r²ω where B is magnetic field , r is radius of the coil and ω is angular velocity of rotation , n is no of turn .
ω = 2πf = 2π x 60 = 120 π ; where f is frequency of rotation .
emf induced = 1 /2 B r²x 120π x n
Putting the given values
10000 = .5 x B x .11² x 120 x 3.14 x 506
B = 8.67 T .
Answer:
350x^2
Explanation:
I'm assuming you're saying you're using them together, like stacking them on top of each other, so if that's the case then this is a simple multiplication problem, which can be written as 10x(35x). Solve it and you get 350x^2.
Answer: A
resistances of resistors and voltages of batteries
Explanation:
Electric circuit comprises of resistors or load, batteries or power supplied e.t.c
Current can only flow in a circuit when there are resistors and voltage supply which is a battery.
In order to analyze a circuit correctly, the values of resistances of resistors and voltages of batteries should be known.
