4 PM - CLASS 12 JEE PHYSICS TUTORIAL | DC CIRCUIT T-7 | SHAHBAZ SALIM | VMC

12:30 PM JEE Mains 2020 - Physics | Current Electricity - 30 Days Score Booster Course

Thirty children were asked about the number of hours they watched TV programmes in the previous week. The results were found as follows: 1 6 2 3 5 12 5 8 4 8 10 3 4 12 2 8 15 1 17 6 3 2 8 5 9 6 8 7 14 12 (i) Make a grouped frequency distribution table for this data, taking class width 5 and one of the class intervals as 5 - 10. (ii) How many children watched television for 15 or more hours a week?

7 PM JEE Mains 2020 - Physics | Sound waves- 30 Days Score Booster Course

Let {A_n} be a unique sequence of positive integers satisfying the following properties: A_1 = 1, A_2 = 2, A_4 = 12, and A_(n+1) . A_(n-1) = A_n^2 pm 1 for n = 2,3,4… then , A_7 is

the daily minimum temperatures in degrees Celsius recorded in a certain Arctic region are as follows: -12. 5 ,-10. 8 ,-18. 6 ,-8. 4 ,-10. 8 ,-4. 2 ,-4. 8 ,-6. 7 ,-13. 2 , -11. 8 ,-2. 3 , 1.2 , 2.6 ,0,-2. 4 ,0, 3.2 , 2.7 , 3.4 ,0,-2. 4 ,-2. 4 ,0, 3. 2 , 2.7 , 3.4 ,0,-2. 4 ,-5. 8 ,-8. 9 ,-14 ,6,-12. 3 ,-11. 5 ,-7. 8 ,-2. 9 Represent them as frequency distribution table taking -19. 9\ to-15 as the first class interval.

A current of 4 A flows in a coil when connected to a 12 V dc source. If the same coil is connected to a 12 V, 50 rad s^(-1) ac source, a current of 2.4 A flows of the coil in the circuit. The power developed in the circuit of a 2500 (mu)F capacitor that is connected in series with the coil is

A current of 4 A flows in a coil when connected to a 12 V dc source. If the same coil is connected to a 12 V, 50 rad s^(-1) ac source, a current of 2.4 A flows of the coil in the circuit. The inductance of the coil is

If at t^oC , K_w = 10^-14 , then pH of pure water at t^oC will be a) 4 b) 6 c) 7 d) 12

The n t h term of the sequence 4 , 7 , 12 , 19 , … is

A current of 4A flows in a coil when connected to a 12V DC source. If the same coil is connected to a 12V, 50 rad//s AC source, a current of 2.4A flows in the circuit. Determine the inductance of the coil. Also, find the power developed in the circuit if a 2500muF capacitor is connected in series with the coil.