1. A 2-H INDUCTOR DRIVES A CURRENT OF 0.5 AMP WHEN THE CIRCUIT IS OPENED THE CURRENT DISAPPEARS IN 0.01 SEC, CALCULATE THE EMF.
2. CALCULATE THE MAGNETIC FLOW THROUGH A COIL OF 7.2 Mh WITH 300 ROLLS WHEN i=10 mAmp
3. THE CURRENT IN A 0.02-H INDUCTOR VARY ACCORDING TO I-3t 4t
CALCULATE
a. Emf at t=1 sec and t = 5 sec
b. So that the value of t the Emf induced is zero
4. A SOLENOID HAS 120 TURNS, IT IS PLACED IN A BASE OF 10mm DIAMETER CALCULATE THE INDUCTANCE L
5. CALCULATE INDUCTANCE IN A CIRCUIT RL WHERE R = 0.4 OHMS AND THE CURRENT INCREASES A % OF ITS FINAL VALUE AT t = 1.5 sec
6. A 12-VOLT BATTERY IS CONNECTED IN SERIES WITH A RESISTANCE R AND AN INDUCTOR L, THE CIRCUIT HAS T 500 sec AND THE MAXIMUM CURRENT Imax 200 mA CALCULATE THE VALUE OF L
7. CALCULATE THE ENERGY ASSOCIATED WITH THE MAGNETICOB FIELD OF A SOLENOID OF 200 TURNS AND CURRENT I = 1.75 AMP PRODUCES A FLOW = 3.7 X 10
8. A BATTERY OF £ = 15 VOLTS IS CONNECTED WITH AN INDUCTOR L 0.6-HYR = 7 OHMS WHEN i = i / 2 , CALCULATE U (energy) TOTAL IN THE INDUCTOR
9. UNL 1.05H IS CONNECTED IN SERIES WITH A VARIABLE CAPACITOR, THE SYSTEM FREQUENCY IS 96.3 MHZ, CALCULATE THE C VALUE
Solution) L = 2 H
i = 0.5 A
t = 0.01 s
E = ?
E = (L)(di/dt)
E = (2)(0.5/0.01)
E = 100 V
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1. A 2-H INDUCTOR DRIVES A CURRENT OF 0.5 AMP WHEN THE CIRCUIT IS OPENED THE...
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