Day 81: MHT-CET Physics
5 questions. Try each one first, then open its answer.
Question 1
Electromagnetic Induction. Asked 3 times: 15 May 2023 S1, 11 Apr 2026 S2, 16 Apr 2026 S2 See all 3 times it was asked
137Alternating current of peak value A flows through the primary coil of a transformer. The coefficient of mutual inductance between primary and secondary coils is 1H. The peak value of induced e.m.f. in the secondary coil is (Frequency of a.c. = 50 Hz)Tap an option to check your answer.
Question 2
Units and Measurement. Asked 3 times: 20 Apr 2025 S2*, 26 Apr 2025 S1, 16 Apr 2026 S2 (* = numbers or wording changed that year) See all 3 times it was asked
101The error in the measurement of length and mass of a cube is 3% and 4% respectively. The error in the measurement of its density will beTap an option to check your answer.
Question 3
AC Circuits. Asked 3 times: 22 Apr 2025 S2, 13 Apr 2026 S1, 16 Apr 2026 S1 See all 3 times it was asked
138An alternating e.m.f. is given by . In what time the e.m.f. will have half its maximum value, if 'e' Starts from zero?Tap an option to check your answer.
Question 4
Current Electricity. Asked 3 times: 2 May 2023 S1*, 15 Apr 2026 S2*, 16 Apr 2026 S1 (* = numbers or wording changed that year) See all 3 times it was asked
130A metre bridge experiment, the resistance in the left gap is and in the right gap is . The bridge is balanced. The distance of the null point from the centre of the wire isTap an option to check your answer.
Question 5
Electrostatics. Asked 3 times: 10 May 2023 S2, 12 May 2024 S2*, 16 Apr 2026 S1 (* = numbers or wording changed that year) See all 3 times it was asked
126Two point charges and are kept at points A and B in air where distance cm. What is the increase in potential energy of the system when is moved towards , by 2 cm ?Tap an option to check your answer.