I need answers for a and b

(10%) Problem 4: Consider a lightning bolt at the equator that carries 22500 A, Randomized Variables I=22500 A & 50% Part (a) What is the magnitude of the magnetic force per meter (N/m) on the lightning bolt if it is perpendicular to the Earth's 3.00 x 10 T field? Grade Summary Fi= | Deductions 0% Potential 100% sin() cos() tan() x| B 7|8 9 1 Submissions n Attempts remaining: | cotan() asin() acos() E 4 5 (5% per attempt) atan() acotan() sinh() N (24 873 detailed view cosh() tanh() cotanh() + - 0 ODegrees () Radians \\f{) Submit Hint } 1 give up! Hints: 3", deduction per hint. Hints remaining: 2 Feedback: 2. deduction per feedback. & & 50% Part (b) What is the direction of the force if the current is straight up (out of the page) and the Earth's field direction is due north, parallel to the ground