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Electric Current and CircuitsQuestion and Answers: Page 3

Question Number 69901 Answers: 1 Comments: 2

Question Number 69966 Answers: 0 Comments: 1

Question Number 69866 Answers: 1 Comments: 0

Question Number 69836 Answers: 1 Comments: 2

Question Number 68808 Answers: 1 Comments: 0

Question Number 68062 Answers: 0 Comments: 1

Question Number 66249 Answers: 1 Comments: 0

The npn transistor in the voltage amplifier circuit operates satisfctorily on a quiescent collector current of 3mA. if the battery supply (V_(cc) ) is 6v, calculate the value of ; (a) the load resistor R_L (b) the base current for the quiescent collector−emitter voltage V_(ce) to be half the battery voltage. Th transistor dc current is 100. please help.

$The npn transistor in the voltage$ $amplifier circuit operates satisfctorily$ $on a quiescent collector current of 3 mA .$ $if the battery supply (V_{cc}) is 6 v, calculate$ $the value of;$ $(a) the load resistor R_{L}$ $(b) the base current for the quiescent$ $collector - emitter voltage V_{ce} to$ $be half the battery voltage .$ $Th transistor dc current is 100 .$ $please help .$

Question Number 58203 Answers: 1 Comments: 0

A battery can supply current of 1.2A and 0.4A through 4Ω and 14Ω respectively. Calculate the internal resistance of the battery

$A battery can supply current of 1 . 2 A$ $and 0 . 4 A through 4 Ω and 14 Ω respectively .$ $Calculate the internal resistance of the battery$

Question Number 57525 Answers: 1 Comments: 0

Question Number 57462 Answers: 0 Comments: 0

Two conductors has total charge of +10.0μC and −10μC with 10volt between them. (a) Determine the capacitance between them (b) what is the p.d between the two condoctors if the charge on each are increased to +100μC and −100μC respectively ?

$Two conductors has total charge of$ $+ 10.0 μ C and - 10 μ C with 10 volt$ $between them .$ $(a) Determine the capacitance between them$ $(b) what is the p . d between the two$ $condoctors if the charge on each$ $are increased to + 100 μ C and$ $- 100 μ C respectively ?$

Question Number 55970 Answers: 1 Comments: 0

Question Number 51728 Answers: 0 Comments: 5

Question Number 48165 Answers: 0 Comments: 0

In a version of millikan experiment it is a charged droplet of mass 1.8x10^(−15) kg just remain stationary where the p.d between the plates which are 12mm apart is 150v. If the droplet suddenly gain an extra electron. Find (a) the acceleration of the droplet (b) the p.d to bring it back to stationary possition. PLEASE HELP

$In a version of millikan experiment it is$ $a charged droplet of mass 1 . {8 x 10}^{- 15} kg$ $just remain stationary where the p . d$ $between the plates which are 12 mm$ $apart is 150 v . If the droplet suddenly$ $gain an extra electron . Find$ $(a) the acceleration of the droplet$ $(b) the p . d to bring it back to$ $stationary possition .$ $P LEASE HELP$

Question Number 47556 Answers: 1 Comments: 1

Question Number 47090 Answers: 0 Comments: 0

Avery large field of charge has density of 5μC/m^2 . Determine the electric field intensity at a distance of 25cm.Taking medium as vacuum

$Avery large field of charge has density$ $of 5 μ C / m^{2} . Determine the electric field$ $intensity at a distance of 25 cm . Taking$ $medium as vacuum$

Question Number 47087 Answers: 0 Comments: 0

A charge of 1500μC is distributed over a very large sheet having surface area of 300m^2 . calculate the electric field intensity at a distance of 25cm. please help

$A charge of 1500 μ C is distributed$ $over a very large sheet having surface$ $area of {300 m}^{2} .$ $calculate the electric field intensity$ $at a distance of 25 cm .$ $please help$

Question Number 41443 Answers: 1 Comments: 0

Suppose that you wish to fabricate a uniform wire out of 1 gram of copper.If the wire is to have a resistance of R=0.5Ω,and all of the copper is to be used.What will be(i)the length and (ii)the diameter of the wire.

$S u p p o s e t h a t y o u w i s h t o f a b r i c a t e$ $a u n i f o r m w i r e o u t o f 1 g r a m o f$ $c o p p e r . I f t h e w i r e i s t o h a v e a$ $r e s i s t a n c e o f R = 0.5 Ω, a n d a l l o f$ $t h e c o p p e r i s t o b e u s e d . W h a t w i l l$ $b e (i) t h e l e n g t h a n d (i i) t h e d i a m e t e r$ $o f t h e w i r e .$

Question Number 41121 Answers: 0 Comments: 0

Radio Karneston broadcasts at 891kHz. A student made a radio to receive the station using an L-C oscillator circuit with an inductor of fixed inductance,0.16mH and a variable⊛ capacitor.At what value of capacitance will the student receive the station?

$R a d i o K a r n e s t o n b r o a d c a s t s a t 891 k H z .$ $A s t u d e n t m a d e a r a d i o t o r e c e i v e$ $t h e s t a t i o n u s i n g a n L - C o s c i l l a t o r$ $c i r c u i t w i t h a n i n d u c t o r o f f i x e d$ $i n d u c t a n c e, 0.16 m H a n d a v a r i a b l e ⊛$ $c a p a c i t o r . A t w h a t v a l u e o f$ $c a p a c i t a n c e w i l l t h e s t u d e n t r e c e i v e$ $t h e s t a t i o n ?$

Question Number 41122 Answers: 0 Comments: 0

A lamp is connected in series with a parallel plate capacitor and a source of alternating current.When the plates seperation is increased,the⊛ lamp dims.Please explain this observation.

$A l a m p i s c o n n e c t e d i n s e r i e s w i t h$ $a p a r a l l e l p l a t e c a p a c i t o r a n d a s o u r c e$ $o f a l t e r n a t i n g c u r r e n t . W h e n t h e$ $p l a t e s s e p e r a t i o n i s i n c r e a s e d, t h e ⊛$ $l a m p d i m s . P l e a s e e x p l a i n t h i s$ $o b s e r v a t i o n .$

Question Number 40732 Answers: 1 Comments: 2

Question Number 40406 Answers: 1 Comments: 0

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Question Number 38967 Answers: 1 Comments: 8

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Question Number 36707 Answers: 2 Comments: 1

P=i^2 R then how (dP/P) = 2 (dI/I) ? Similarly P= (V^2 /R) then how (dP/P)=2(dV/V)?

$P = i^{2} R then how \frac{dP}{P} = 2 \frac{dI}{I} ?$ $Similarly P = \frac{V^{2}}{R} then how \frac{dP}{P} = 2 \frac{dV}{V} ?$

Question Number 36700 Answers: 2 Comments: 0

Pg 1 Pg 2 Pg 3 Pg 4

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