Question

2. (20 points) A 1.20 cm long solenoid is made of 165. turns of coils of coil radius 3.00 mm. The coils are made of alloy wire of radius 0.500 mm and resistivity 2.085 x 10 2m. A piece of steel core (Xm- 1.47 x 10) is inside the solenoid, What is the inductance of the solenoid? b. What is the resistance of the solenoid? Such a solenoid is connected in series to a a. at a voltage of 2.00 V. The area of parallel plate capacitor fully charged each plate is 15.0 m2, with a separation of 2,00 um. The capacitor is filled with a dielectric of constant K 52.7. on the capacitor AND the oscillation frequency of the circuit. Find the initial charge d. Write down the charge C. on the capacitor as a function of time. When will the charge amplitude be halved? e. f. At the instant of time in part e, find the polarization of the dielectric. Vo2.00 V (Hint: Find the actual amount of charge and voltage on the capacitor.) C RL

Answer 1

Q.no -2 (a) , (b) only are solved as given below:-

Aata aiven }20 Cm (turons (Coil adius) N 7 wes a o O 50 DTmm alloy uire ofradius) 2085xI66m (esstrit) Znductan a We know tha, let A 2 2- ( 2 . Rotlo 15) 2 3-14 2 /20x1o-4 2 (65) 63Yx165x/65 X(0 44 &0 Men

that A e kn ow R A Dinafne 2 o &5x/0-6 X 2 2 20Xo X 3-1(3. agS. 9 2 208Sx1p 19.65XL 2 2502x10 2. O.27X1o