Figureshows a circuitinwhichthreeidenticaldiodesare used. Each diode has forward resistance of 20 and infinitebackward resistance. Resistors . Batteryvoltageis6V Thecurrentthroughis:

The1-VcharacteristicofaP-Njunctiondiodeisshown below.Theapproximatedynamicresistanceof thep-njunctionwhenaforward biasvoltageof 2voltisappliedis I(mA)

Ifthelatticeconstantofthissemiconductorisdecreased thenwhichofthefollowingiscorrect?

In the circuit given below, and represent two inputs and represents the output.

Thediagramofalogiccircuitisgivenbelow.TheoutputFofthecircuitis representedby

The circuit has two oppositively connected ideal diodes inparallel.Thecurrentflowinginthecircuitis

The circuit diagram shows a logic combination with thestates of outputs X, Y and Z given for inputs P, Q, Rand Sall at state 1. When inputs P and R change to state O withinputs Q and S still at 1, the states of outputs X, Y and Zchangeto

AZenerdiodeisconnectedtoabatteryandaloadasshowbelow

Thecurrents,I,andI_Larerespectively

ThecorrecttruthtableforsystemoffourNANDgatesasshowninfigureis:

Thefollowingcircuitdiagram represents

 In the above plot of binding energy per nucleon Eb, againstthe nuclear mass M; A, B, C, D, E, F correspond to differentnuclei.Consider fourreactions

(ii)
(iii)
(iv) wheresistheenergyreleased?Inwhichreactionsiss
positive?

If the nuclear force between two protons, two neutrons and between proton and neutron is denoted by ' and respectively, then

Binding energy per nucleon plot against the mass numberfor stable nuclei is shown in the figure. Which curve iscorrect?

If the D. C’s of a line are then c is equal to

For such questions, we should know the properties of direction cosines.

The value of f(0) , so that the function  becomes continuous for all is given by