Physics 12th Sep 1 PDF Past Paper

Summary

This is a physics past paper for class 12, covering topics such as electricity, magnetism, and gravitation. The paper includes questions on drift velocity, resistivity, and potential gradients. The questions are likely to assess understanding and application of concepts.

Full Transcript

9cci)11 4 1 ITIUTPW "%UT -R-RTEE fi '(-1:1 2021-22 TIM- Ric1+-EN — 02 15 1...

9cci)11 4 1 ITIUTPW "%UT -R-RTEE fi '(-1:1 2021-22 TIM- Ric1+-EN — 02 15 17 — ATT6t — vrr-r tkulTch-20 Trq witt w i1m--1- 1111.91 ,4 I Instruction :— Attempt all the question as per given instructions. 517 -1 1. 33 T crzil 31-cr-qrg 3N- um `1-f.-7I 1 1544 111 75-100 Q. 1. What is drift velocity? obtain a relationship between current and drift velocity. M7-I 2. ed-TKwd-r Czi-NTRiff tr&rqr ct.) c voct) critR)u-w-d-r 5t) 4-i71: p1 T[p 2 t, — p1 i p2 3T-Trrff R1 f R2 311141ff r(1) I... 2 cm... I I 4cm 31-W-1+1+2 =-4 1 ,5411+-11 75-100 Q. 2. Define resistivity. In the figure resistance of two conductor of same material are p1 and p2 respectively. find the. ratio of p1 and p2 ratio of R1 and R2 (or '(1) (.) I... 2cm...I I 4cm 517-I 3. c.t) 4171 f'aR' 4f u 11 +1) B = " I -g-1 * f-I 2TEr TIN -crpr F4EFE c61 aw..q t rr7 3iW-14-1+1+1 =4 16,4 ti) 4-II 75-100 Confidencial Ram. Cgbse Assignment Year 2021-22 02 The value of the resultant magnetic field of an Amperian loop is poi B= 2TEr. Explain four major findings for this relation. MY-I 4. \i-li cnch TOCCII4O4 U 1 fkLictico (G), Lki?)qoict) (E) c TT 4101 1-q c11 (il./) c , c'i 1I -c1k fo-34- 4 11-r- A-7 I 3i--1+1-1-1+1=4 71E44 111 75-100 Compare Universal gravitational constant (G), Permittivity (E) and Permeability (/2) in four points q Y-1 5. (31) ft4-1-q- Mcl u ldl chi 10-4-1Tfirff (4) ti-RT I 5T 111'1 — 2A 5A IA 4A (TO 'e4d. f+-0 cr)) *\ticni vitc l I cl 341-ffff flI11 24 ffiR§N = 4 7164a 111 75-100 Q. 5. (a) Define potential gradiant In the given diagram write the value of current I 2A 5A IA 4A What is lightning. Write the average peak power per stroke of it. et.\-L---- " Confidencial Ram. Cgbse Assignment Year 2021-22

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