MBOSE Class 11 Question Paper 2023 for Electronic & Hardware

(4) Total No. of Printed Pages – 4 HS/XI/A.Sc.Com/EH/23 3. Answer the following questions in 3 or 4 sentences (Any three): 2 3 = 6 2023 ELECTRONICS & HARDWARE (a) Difference between AC and DC current. ( Theory ) (b) State Kircchoff’s current law. Full Marks : 30 (c) What are the applications of relay? Time : 1 hour (d) What are the importance of earthing? The figures in the margins indicate full marks for the questions (e) Write different types of Logic gates. General Instructions: (i) Write all the answers in the answer script. (ii) Attempt all parts of a question together at one place. 4. Answer the following essay-type question (Any three): 4  3 = 12 1. Choose the correct answer: 1 8 = 8 (a) Derive Maximum Transfer Theorem. (a) The output of AND GATE is ______ (b) Convert the decimal number 27 to its equivalent (i) Y=A+B binary number. (ii) Y = A.B (c) What are the safety measures to follow when (iii) YA installing an AC unit? (d) Define earthing. Explain different types of (b) _______ touch any live wires or conductor with earthing. your bare hands. (e) Prepare the symbol, logic equation and truth table (i) Do for NOT GATE. (ii) Don’t  (iii) Both. HS/XI/A.Sc.Com/EH/23 HS/XI/A.Sc.Com/EH/23

(2) (3) (c) Given Y = A + B, Input A = O, B = 1 output will (g) The resultant resistance in series circuit is be_______. 1 1 1 1 (i) 0 (i)    RT R1 R 2 R 3 (ii) 1 (ii) RT  R1  R 2  R 3 (iii) 2. (iii) RT  R1  R 2  R 3 (d) Which of the following is not a type of electrical earthing? (h) Full form of EMF is (i) Natural earthing (i) Electromagnetic force (ii) Neutral earthing (ii) Electro-motive force (iii) Equipment earthing. (iii) Electro-magnetic full. (e) Ohm’s Law, V =IR, where R represent (i) Resistance 2. Answer in one word or one sentence each (Any four ): 1 4 = 4 (ii) Potential difference (a) What is electricity? (iii) Current flowing. (b) Define Power. (c) What is the S.I. unit of magnetic field? (f) A This symbol represents. (d) What is semiconductor? (i) AND Gate (ii) OR Gate (e) What is electrostatics? (iii) NOT Gate. (f) Define Logic Gates. HS/XI/A.Sc.Com/EH/23 HS/XI/A.Sc.Com/EH/23