Question

- og disenas? (25 p.) 3-In the circuit shown below the initial voltage Vab is 80 v. What will be the voltage Vab 2 seconds after closing the switch S? (25 p.) MER I 100 MF 5 KR 511 100 MF 4-What would be the acceleration voltage that we have to apply in the e/m ratio apparatus when the current in the Helmholtz coils is equal to 2 amp, to achieve a radius of 5 cm of the fircle of the electron path? (40 p.) urns per Coil, N=132. Coil Radius, a=147.5mm.

Answer 1

Concept - Find the equivalent capacitance and the equivalent resistance of the circuit. Use the equivalent capacitance and equivalent resistance value to find the time constant of the circuit.

- 50 euf Reg = 5 12 + 5 12 = 10 12 Ceas 100uF || 100uF = (100 415) 100UF) 100uF 7 Loouf so, T = Req Ceq = 0.55 । ov, or, on Q = Q.e-tle CV - Cvie-412 V = Voertle Vo = 80V, t = 25 Vab = (801) (-2.5 = (1.46]v.

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