Tiêu đề 8. Physics 2022.pdf ✅

III +di. Roll No. *Effil1./ PHYSICS (Theoryf vqq,squel lgqfo: zo Time:3 Hours I [Max.Marks : 70 ffisr : (i) f,s er=r rn t gf, 30 eqi f;l rs$ cs{ 3flfudid dl 1r1 rw dwr t t-a a-o nd-o cTq' 1 3i6 6'r tt cr{ d@T s t te il6'srdo cq{ z ' . sidii 6r d, eq{ scsl 1 I + 27 rro c-dd c5{ s 3i61 6r t il{r cqi' sqr ee t go a-o s-do cr{ s 3i6l6T tt tiiD cr{ sqr t t + ao d-6ffiq ev< dr f+ri ndo cE{ b rt< ii ar< froe ftt " rr$ dr e-fr t-o-e s+q-S"r+
5 1 6 1 I +d b sffi6 sftter t 3flc ffir srflt d? What do you understand by internal resistance of a Cell? 7 1qrcsdrsf bvrEersf of qFohodBret Calculate the energy equivalent of 1 gm. of substance, B n-!l?Fr{ rrelr p-r-ox b 3rffitt E-$iq6 sTracr oTF6.t b qr-q sdr$ut 1 Give the name of majority charge carriers in n-type and p-type semiconductors. dgd Egsd 3{fiqfuIfttfttS kgqq*gd fie dato-aror q, cgffidt iitm.r3TQf o-arigufrfuut 2 Write the formula for the intensity of electric field at a point in the axial position of a electric dipole, giving the meaning of the symbols used. 9 10. Ttr g@-n e au-*rr (srer+r rgqq{1 tn o*n +g-o enn d qq*r Rnfrd frBut Establish a relation between drift velocity of free electrons and electric current. 3rerar (oR) 2 11. ur$t dpn $dur-f,o.i # chttro-dr w dM 6l ffir qqrq qsar ta What is the impact of temperature on the resistivity of semiconductors. 2 metals and 429(row) I31 lP.T.O. dt-a cm mr te rsb frs dis6 ftfuul What is Lorentz force? Write expression for it. r o v frga a-ro sd drff ffi , ftlro.r 3rffi6 cfrtrtr s o t, ffi cft-t€ro t tdrHd 31 qp qftuu ii enqr mr crq 0.s A d, d cfdrtr€ro or vFnler mr ta A battery of emf 10 V and internal resistance 3 o is connected to a resistor. If the current in the circuit is 0.5 A, what is the resistance of the resistor?
tz. ro cm Btrr d fu+ i$s-fr , ft-st qrs-crs s. 1 o0 bt d, d 3. 2 A fugd qRT caGa d €ttffibb-