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(1) Is there a relationship between the electric field E and magnetic field B of an electromagnetic wave at each point in vacuum? A. No any relationship. B. Yes, E is perpendicular to B and E cB C. Yes, is parallel to B and E cB D. No relationship between E and B in direction but E-cB in magnitude. 2)) A long, closely wound solenoid is physically altered by doubling the number of turns while halving the current through it, leaving everything else unchanged. How does the self-inductance L change? A. L stays the same. B. L doubles. C. L is halved. D. L is four times greater ( field. What is the direction of B2 i (3) ) As shown in Fig. Problem 2(3) an electron moves perpendicular to a magnetic A. Left. C. Into the page. B. Right. D. Out of the page. Fig. Probiem 2(3).

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Answer #1

Aus Self anductance of Solensid CL) 今 sel fınducta n celu) So, selt inductanee q →.ve Cer electwon -Ve inslda the pege (-lc)

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