Q: Discuss the factors determining the induced emf in a closed loop of wire.
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A: resistance (R) = 0.5 ohm Time (t) = 1.5 seconds Current = Imax4
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A: According to Lenz's law Induced emf always opposes the cause by which it is produced
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Q: Find the induced current in the loop, in amperes, at time t = 0.102 s.
A: Induced current is induced emf devided by Resistance , whereas induced emf is given by rate of…
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A: Given Data: The resistance of a resistor is, R=130 Ω The inductance of an inductor is, L=68 mH The…
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Q: Show that Im where I is the root mean square value of alternating current and I, the peak value.
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Q: In what three ways can the strength of an induced current be increased?
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A: Given Magnetic field, ∆φ=10 Wb Time ∆t=1 s Resistance, R=10 Ω
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A: The expression for the energy stored in the magnetic field is
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Q: (a) (b) (c) (d) B increasing B decreasing (e) (f) 1> 1>
A: Introduction: According to Lenz's law, the induced magnetic field is opposite to the direction of…
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A: Back emf in DC shunt motor is given by Eb = V-lara also , back emf is given by Eb = KnϕN Torque T…
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A: Given: I=25 A r=10 cm =0.1 m
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Q: Consider the magnetic circuit in the following figure. Assuming that the core (µ, = 2000) has a…
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A: 3 We have i=CdVdtV=∫iCdt=C∫6sin4tdt=6C4cos4t+k=6×24cos4t+k=3cos4t+k Given V(0)=1 which gives k=-2…
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A: Write the formula for the resistivity of the copper.
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Q: V = 3.2V I= 2.4 Elkctnc motor %3D a, (denver) = 9.796MISIS 2.1 23 dy = 1.66 m 2.06 Power Sorce time:…
A: given m = 0.1074 kg g = 9.796 m/s2 h = 1.66m time = (2.1+2.3+2.06)/3 t = 2.153 v = 3.2v i = 2.4 A
Q: Is a nonzero electromotive force (Vemf) induced in the loop?
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A: Given, a large water main is l=2.50 m in diameter and the average water velocity is v=6.00 m/s. To…
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A: This question can be solved by applying the basic concepts of LCR circuit.
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Q: The armature coil of a d.c. motor has a resistance of 0.2 N and is connected to a 120 V supply. Find…
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Q: A series RL circuit like Fig. 27.23a has E0 = 60 V, R = 22 Ω, and L = 1.5 H. Find the rate of change…
A: The given values are, ε0=60 VR=22 ΩL=1.5 H
Q: Figure 29.17 R a In Fig. 29.17, a battery supplies a steady current to the solenoid on the left. The…
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Q: Does the induced emf always act to decrease the magnetic flux through a circuit?
A: According to Lenz's law - "An induced electric current flows in a direction such that the current…
Q: Suppose that a rectangular toroid has 2000 windingsand a self-inductance of 0.040 H. If h = 0.10 m ,…
A: Given Data: The number of winding is, N = 2000. The self inductance is, L=0.040 H. The height is, h…
Q: At what angular velocity in rpm will the peak voltage of a generator be 480 V, if its 500-turn, 8.00…
A: Using the equation for the peak emf, ε=NABωω=εNAB=εNπd24B
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- In an oscillating RLC circuit, R = 7.0 L. = 10 mH. And C = 3.0 F. Initially, the capacitor has a charge of 8.0 C and the current is zero. Calculate the charge on the capacitor (a) five cycles later and (b) 50 cycles later.At what time is the voltage across the inductor of the RL circuit of Figure 14.12(b) a maximum?Does the time required for the current in an RL circuit to reach any fraction of its steady-state value depend on the emf of the battery?
- LC-Circuit. This is an RLC-circuit with negligibly small R (analog of an undamped mass-spring system). Find the current when L = 0.5 H, C = 0.005 F, and %3D E = sin t V, assuming zero initial current and charge. E(t) Fig. 69. LC-circuitcmid 97298page=3 For the following circuit in the figure below consider the direction of the current given. Determine e ( in units of V) when 10.50 A and R = 27.4 2. R 2R 2R Select one: OA. 13.7 OB. 54.1 OC. 822 OD. 18 2 OE 68.5 W. A OE d0 ENG 228 PISE RL Series Circuit Suppose Ɛ = 2.3_V, R = 100_Q, and L = 33_mH. Then find the current after 0.00018_ %3D 7. 0.01189 A 0.01056 A 0.01085 A А. 0.01131 A 0.01004 A 0.00967 A D. В. E. С. F. |--/ DLSeries Circuit Sunnose E = 4.7 V. R = 10 0. andL = 4.5 H, After 0 31 time constants the
- A circuit conducting loop lies in the :xy-plane as shown in Figure .The loop has a radius of 0.2m and resistance R = 4 Q. If B 40 sin 104 t az mWb/m2, find the currrent.4. Calculate the total. Itotal and Ptotal of this circuit. 900 ΚΩ 17.5 k 58.50 750 0 ww 15 KO +15V 16 KQ w 20 k ww 64 k 4 MO ww 5.6 k 68kQ wwww. 115 KGProblem 6: An RL circuit is shown on the right. L 2.4 H. R 49 Ω.e 7.5 V Part (a) Switch A is closed at t- 0. Express the current I in the circuit as a function of time in terms of L, R, and ε. tR I(t)1-e L) Correct! Part (b) What's the direction of the current I, counterclockwise or clockwise'? Counterclockwise Correct! Part (c) Calculate the numerical value of 1 at t 0.1 s in amperes. Part (d) Calculate the numerical value of 1 at t-L/R s in amperes. A Part (e) Calculate the numerical value of I, in amperes, when t goes to infinity Part (f) After a long time, when the current reaches its steady value, open switch A and close switch B at the same time. Count this moment as t-0. Express the current in the circuit, I, as a function of time in terms of L, R, and e. -tR IL V Correct! Part (g) Now what is the direction of the current I, counter-clockwise or clockwise? Counterclockwise. VCorrect! Part (h) Calculate the numerical value of 1 at t 0.1 s in amperes. Part (i) Calculate the…
- In an A. C. circuit, the flowing current is I = 5 sin (100 t - t/2) A and the potential difference is V = 200 sin (100 t)V. The power consumption is equal to %3DSolve the initial value problem for the RLC-circuit in the accompanying figure with the given data, assuming zero initial current and charge. R = 22, L=1 H, C = 0.02 F, E = 770 (cost +24.5 sin t) V www R} C HE W E(t) RLC-circuitEvaluate the current at RL circuit with L=2 Henry, R=4 Ohm, E= 9 V after 3 seconds.