EMWT ONLINE 7

1 . T h e c o nd u c ti v i ty o f a n i d e a l c o n d u c t or i s
( a) U n i ty ( b ) T wo ( c ) I n fi n i ty ( d ) Z e ro

2 . T h e d i m e n s i o n o f a r e fl e c ti o n c o e ffi c i e nt i s
( a) V / A ( b ) V / m ( c ) A / m ( d ) N o u n i t

3 . U n d e r t o t al i nt e r n a l r e fl e c t i o n t h e r e fl e c t i on c o e ffi c i e nt f o r b o th p o l ar i z a t io n s i s
( a) A n i m a g i n ar y q u ant i ty ( b ) M ay b e re al o r i m a gi n a r y q u ant i ty
( c ) A c om p l e x q u a nti ty ( d ) A r e a l q u a nt i ty

4 . . E l e c t ri c an d m ag n e t i c fi e l d s w h i ch ar e p ar a l l e l
( a) C o n s t i t u te i n fi n i t e p owe r fl ow ( b ) C o n s t i t u te u n i t m a gn i t u d e p owe r fl ow
( c ) D o n ot c on s ti t u t e a ny p owe r fl ow ( d ) C o n s t i t u te a p owe r fl ow

5 . A u n i f o r m p l an e wave t r ave l i n g i n ai r w i t h a p owe r d e n s i ty of 2W / m 2 . T h e n t h e e l e c t ri c fi e l d s t r e n gt h o f t h e wave i s
( a) η 0 / 2 ( b ) 2 η 0 ( c ) 2 s q r t ( η 0 ) ( d ) S q r t ( 2 η 0 )

6 . T h e wave a l on g a c o- ax i al t ra n s m i s s i on l i n e i s an e x am p l e f o r
( a) L i ght wave ( b ) U n g u i d e d wave ( c ) G u i d e d wave ( d ) U n i f o r m p l a ne wave

7 . T h e l owe s t or d e r m o d e of T E wave s b e twe e n p a ra l l e l c on d u c to r s
( a) T E 1 1 ( b ) T E 1 0 ( c ) T E 1 2 ( d ) T E 0 0

8 . T h e ve l o c i ty o f p r o p ag a ti o n o f e qu i p h a s e s u r f a c e s a l o n g th e g u i d e i s
( a) P h a s e ve l o c i ty ( b ) G r o u p ve l o c i ty ( c ) L i ght ve l o c i ty ( d ) G u i d e ve l o c i ty

9 . T E M m o d e i s e q u al t o
( a) T M 0 0 ( b ) T E 1 0 ( c ) T M 1 0 ( d ) T E 0 0

1 0. T h e wave i m p e d an c e f o r a z d i r e c te d T M wave i s
( a) η c o s θ ( b ) 1 / η ( c ) η / c o s θ ( d ) η

1 1. Pa ra l l e l p l at e t r an s m i s s i o n l i n e f a b r i c a te d o n a d i e l e c t r i c s u b s t r a te u s i n g p r i nt e d c i r c u i t te ch n ol o gy of te n c al l e d a s
( a) S t r i p l i n e ( b ) I nt e g ra t e d c i rc u i t ( c ) Wave g u i d e ( d ) R e s o n at o r

1 2. I n a tr a n s m i s s i o n l i n e t h e vol t a ge a n d c u r r e nt s t an d i n g wave s a re
( a) 0 0 o u t of p h a s e a l on g t h e l i n e
( b ) 2 70 0 o u t of p h a s e a l on g t h e l i n e ( c ) 9 0 0 o u t of p h a s e a l on g t h e l i n e ( d ) 1 80 0 o u t of p h a s e a l on g t h e l i n e

1 3. Fo r a l o s s l e s s l i n e t h e ch a ra c t e r i s t i c i m p e d an c e i s ( a) Z 0 = S q r t ( LC ) ( b ) R 0 = S q r t ( 1 / L C ) ( c ) R 0 = S q r t ( L / C ) ( d ) Z 0 = S q r t ( C / L )

1 4. H y s t e r e s i s an d e d d y c u r r e nt l o s s e s i n l o ad i n g c oi l s l e ad s t o ( a) D e c r e a s e i n R ( b ) D e c r e a s e i n L ( c ) I n c r e a s e i n R ( d ) I n c r e a s e i n L

1 5. A t ra n s m i s s i on l i n e op e r at i n g a t 1 G H z h as L = 1 m i c r o h e n r y / m , C = 1p F / m , R = G = 0. T h e n i t s ch ar a c te ri s ti c a d m i tt a n c e i s ( a) 1 0 m h os ( b ) 0 . 00 1 m h os ( c ) 0 . 1 m h os ( d ) 0 . 01 m h o s

1 6. T h e S W R of a t ra n s m i s s i on l i n e w h i ch i s t e r m i n a te d w i t h i t s ch ar a c t e r i s t i c i m p e da n c e s g i ve n by
( a) i n fi n i ty ( b ) z e r o ( c ) 1 ( d ) 2

1 7. W h i ch o f t h e f o l l ow i n g i s a on e t o on e t ra n s f o r m e r
( a) λ l i n e ( b ) λ / 2 l i n e ( c ) λ / 8 l i n e ( d ) λ / 4 l i n e

1 8. T h e s m i t h ch a rt c an b e u s e d a s
( a) A d m i t t an c e ch ar t o n l y ( b ) N o rm a l i z e d ad m i t t an c e ch a r t on l y ( c ) I m p e d an c e ch ar t a s we l l a s A d m i t t a n c e ch a r t ( d ) I m p e d an c e ch ar t o n l y

1 9. A s i n gl e s t u b m a tch i n g i s a (
a) B r o ad b an d s y s t e m ( b ) B a n d r e j e c t s y s t e m ( c ) N a rr ow b a n d s y s t e m ( d ) Pa s s b a n d s ys te m

2 0. Fo r a q u ar t e r wave t r an s f o r m e r β l i s e q u a l t o
( a) 2 π ( b ) π / 2 ( c ) π ( d ) π / 4

C D C C C C B A A A A C C C B C B C C B