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BITSAT 2019 Weekly Revision Quiz 1
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Question 1
If charge on left plate of the 5 μF capacitor in the circuit segment shown in the figure is -20μC, the charge on the right plate of 3 μF capacitor is
Question 2
The toroid shown in the figure has a total of N turns, carries current I(in the direction shown), and is of radius R. Calculate the magnitude and direction of the magnetic field.
Question 3
A Newtonian fluid fills the clearance between a shaft and a sleeve. When a force of 800N is applied to the shaft, parallel to the sleeve, the shaft attains a speed of 1.5 cm/sec. If a force of 2.4 kN is applied instead, the shaft would move with a speed of
Question 4
A small wooden ball of density ρ is immersed in water of density σ to depth h and then released. The height H above the surface of water up to which the ball will jump out of water is
Question 5
What is the dimension formula of kinetic energy?
Question 6
If and are different complex numbers ||=1,then |(-)/(1-)|is equal to
Question 7
If a complex number is multiplied by i, it gives a new complex number. The angle between these two complex numbers is
Question 8
Let A be a matrix such that is a scalar matrix and |3A|=108. Then A2 equals :
Question 9
Let(1+2x)20 = a0 + a1x + a2x2 + ...... + a20x20 . Then 3a0 + 2a1 + 3a2 + 2a3 + ...... + 3a20 equals
Question 10
The mean of 5 observations is 4.4 and their variance is 8.24. If three observations are 1, 2 and 6, the other two observations are
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May 8JEE & BITSAT