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3. Find the magnitude of the induced electric field outside a long solenoid at a distance rZR from its central axis if the solenoid is of radius R and hasn turns of wire per unit length and carries a time-varying current that varies sinusoidally as l = 1-cos cot where I-is maximum current and ω is the angular frequency of the current source. 4. A rectangular coil of N windings had an emf of 40 mV induced in it wher...
Your answer is partially correct. Two coils of wire are placed close together. Initially, a current of 2.19 A exists in one of the coils, but there is no current in the other. The current is then switched off in a time of 2.12 x 102 s. During this time, the average emf induced in the other coil is 1.49 V. What is the mutual inductance of the two-coil system? Switch l! Primary Secondary Number i 153.9 Units Н.
= In the circuit below, R 10.0 12, L = 30.0 H, and Ɛ = 20.0 V. Switch S1 is closed and switch S2 is left open. After the current has reached its final value, switch Si is opened and switch S2 is closed. What is the magnitude of the potential difference between points a and b three seconds after S2 is closed (in V)? (A) 3.89 (B) 9.12 (C) 2.00 (D) 7.36 (E) 6.54 (F) 1.00 ع si Sa...
a) A sensitive electronic device of 150 Ω resistance is to be disconnected from an emf source by opening switch S1 (see Fig. 6). An initial current of 30mA runs through the circuit when S2 is closed. The current in the circuit after 48µs is 25mA. What is the R-L time constant ? b) Find the device current after 40µs if the emf is 5V and S1 is closed. Take the values of resistance and inductance from above (part a)....
In Fig. 30-63, R = 2.0 ohm and the ideal battery has E =10 V. Switch S is closed at time t = 0, and then at t = 5.0 s, the current is 1.0 A. What is inductance L?.
In the circuit shown in the figure below, let L-4.70 H, R-3.00 n, and ε·120 V. what is the se lf-induced emf 0.200 s after the switch is closed?
4) Induction Effect. A very long solenoid of radius R-2.5 cm has n 5 turns/cm. Starting from an initial current of io 50 A at 1 = 0, a steadily increasing current is driven through the coils of the solenoid, at a rate of didt = 10 A/s. The solenoid is surrounded by a square flat "pickup" coil of N= 100 turns and of side lengthに10 cm (oriented with its plane perpendicular to, and its center at, the solenoid axis)....
In the circuit shown in the figure below, let L = 4.70 H, R = 4.20 s, and ε = 120 V. What is the self-induced emf 0.200 s after the switch is closed? 225.6 * V What is the equation for the current as a function of time in this circuit? R Need Help? Read It Watch It
In the circuit in the figure R. RS emf of the battery E = 27 V. All the inductors are of the ZR L same inductance, L=0.12 H L3 R1 and of negligible resistances. Is.. Resistances of the resistors are Ro = 31, R: = 41, R2 = 109, Rg = 1522, R = 122, Rs = 102, R=1012. The switch S is closed at the time t = 0 Find the current flowing in Ro immediately after the switch...
Ssuppose that E = 58 V, R = 1950, and L = 0.174 H. Initially there is no current in the circuit. Switch S2 is left open, and switch S, is closed. Just after Sy is closed, what is the potential differences Vab? Number Just after S, is closed, what is the potential differences Vbc? Number A long time (many time constants) after S, is closed, what is V? Number A long time (many time constants) after S is closed,...