3 A vertical bar meves horizonally t contnt velocity through a s md We observe t

Question

3 A vertical bar meves horizonally t contnt velocity through a s md We observe that pois b is at ose ptetial th pt a We can theefore cecde th the Beld must have a compenent tha is dirocte A venicaly downward C. verically upward E. Nose of sbowe A 6.12 A 30A ?.la?A D. None of shove CHAPTE R 22 ALTERNATING CURRENT (AC) 85, A cincuir consists of a light bulh, a capacitor, and an inductor coonecied in serics to an a power source The capacitor and the indactor bave dilforent cassazess. The frequency of the current is higher that the resonance frequency.If the inductor is remound from the circun, what will happen to the brightness of the light bulb? A It will increas B. It will decrease. C. It will remain the same 86. A lighbulb is the resistance in a series R-1L-C cireuit having an ac voltage source vorVoosot As the frequency of the source is adjusted Sarther and farher from the value (ULCy what happens to the brightness of the bulb? A. It increases B. It decreases C. It doesn't change. D. None of above

Explanation / Answer

The direction of field should be such that V x B (vector product)should be in the direction of point b, the larger potential, so B (field ) will be perpendicular to the paper and outward

2) energy stored = 1/2 LI?? 2 = 600 mJ

Here L is the inductance =10.4 mH

So, I=sqrt(1200/10.4) =10.7 A

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