Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Solved Assignments
Asked Questions
Answered Questions
q an aircraft having awing of 2048 m flies at a speed of 40 ms-1 if the vertical component of the earths magnetic field is 2 x 10-5 t compute
q define the unit of self inductanceone henry is described as the self-inductance of a coil in which a change in current of one ampere per second
q compute the mutual inductance between two coils when a current of 4 a changing to 8 a in 05 s in one coil induces an emf of 50 mv in the other coil
q define q- factor the q factor of a series resonant circuit is described as the ratio of the voltage across a coil or capacitor to the applied
q what is acceptor circuit give the uses of it acceptor circuit the series resonant circuit is frequently called an acceptor circuit by proffering
q a capacitor blocks dc but allows ac whycapacitive reactance xc 1omegac 1 2pinuc where nu is the frequency of the ac
q define rms value of ac rms value of ac the rms value of alternating current is described as that value of the steady current which when passed
q what are the various energy losses of a transformer energy losses in a transformer a hysteresis loss b copper loss c eddy current loss iron loss d
q what is efficiency of a transformer efficiency of a transformer is described as the ratio of output power to the input powereta output power input
q write the equation of a 25 cycle current sine wave having rms value of 30 adata nu 25 hz irms
q give the differences between af choke and rf choke audio - frequency af chokesradio frequency r f chokes or high frequency hf chokesa used in low
q what are the methods of inducing emf in a circuit the induced emf is able to be produced by changinga the magnetic induction bb area enclosed by
q define self inductance the coefficient of self induction of a coil is numerically equivalent to the opposing emf induced in the coil when the rate
q state flemings right hand rule flemings right hand rule the middle finger the forefinger and the thumb of the right hand are held in the three
q state lenzs law lenzs law declares that the induced current produced in a circuit always flows in such a direction that it opposes the change or
q state faradays laws of electromagnetic induction first lawat any time the amount of magnetic flux linked with a closed circuit changes an emf is
q what is electromagnetic induction the phenomenon of producing an induced emf because of the changes in the magnetic flux associated with a closed
q define magnetic fluxmagnetic flux phi the magnetic flux phi correlated with a surface held in a magnetic field b is defined as the number of
the magnetic induction at a point 15 cm from a long straight wire carrying a current is 4 x 10 -6 t compute the currentj - 12 b muoi2pia i 2pia x
q explain about end rulewhen glanced from one end if the current through the solenoid is along clockwise direction the nearer end corresponds to
q define amperes circuital law the line integral rarr rarr for a closed curve is equivalent to muo timesthe net current iob dl by the area
q compute the resistance of the filament of a 100w 220 v electric bulbs power p v2r resistance r v2p 220 x 220 100 484
define magnetic moment of a current loop the magnetic moment of a current loop is described as the product of the current and the loop area its
q define current sensitivity of a galvanometer the current sensitivity of a galvanometer is described as the deflection produced when unit current
q give any two differences among peltier effect and joules law of heating joules law of heatingpeltier effecttakes place all through the