BITSAT Sample Questions Papers for BITSAT 2011 Exam | BITSAT Hall Ticket | BITSAT Syllabus | BITSAT Papers | BITSAT Cutoff

Question

Q.1 A car moves on a plane road. The emf induced in the axle connecting the wheels is maximum, when it moves (ignore earthâ€™s rotation)

Possible Answers

Selected	Possible Answer
	westward at the equator
	eastward at the equator
	eastward at the latitude of 45Â°
	at the poles

Question

Q.2 A coil of area 500 cm^2 and 1000 turns is put perpendicular to a magnetic field of 0.4 gauss. If it is rotated by 180^0 in 0.1 second, the emf induced will be

Possible Answers

Selected	Possible Answer
	20 mV
	40 mV
	0 mV
	60 mV

Question

Q.3 A long and straight wire lies along the axis of a straight solenoid, as shown. If the wire carries a current $i = I_0 sin \omega t$ , the emf e induced in the solenoid will be

Possible Answers

Selected	Possible Answer
	$E_0 \sin \omega t$
	zero
	$E_0 cos \omega t$

Question

Q.4 When the circuit of outer coil P, shown in the figure, is closed the current induced in the inner coil Q will be

Possible Answers

Selected	Possible Answer
	Clockwise and instantaneous
	Anticlockwise and continuous
	Anticlockwise and instantaneous
	Clockwise and continuous

Question

Q.5 The rotational emf induced in a wire moving in a magnetic field does not depend on itâ€™s

Possible Answers

Selected	Possible Answer
	Orientation
	Velocity
	Diameter
	Length

Question

Q.6 A rectangular conducting bar of breadth w and infinite length is placed along the x-axis, as shown, in a magnetic field acting in the y-direction. A voltmeter is placed with the two wires in contact at two points across the breadth. On moving the wires, carrying the voltmeter with the speed v, the reading of voltmeter will be

Possible Answers

Selected	Possible Answer
	$\frac{vwB}{2}$
	$\frac{vB}{w}$
	zero
	vwB

Question

Q.7 A rectangular conducting bar of breadth w and infinite length is placed along the x-axis, as shown, in a magnetic field acting in the y-direction. A voltmeter is placed with the two wires in contact at two points across the breadth. On moving the wires, carrying the voltmeter with the speed v, the reading of voltmeter will be

Possible Answers

Selected	Possible Answer
	$\frac{vwB}{2}$
	zero
	$\frac{vB}{w}$
	vwB

Question

Q.8 A metal rod of length moves with a constant velocity v in a direction perpendicular to itself. A constant and uniform magnetic field $\overset{\omega}{B}$ exists in space in a direction perpendicular to the rod as well as velocity. Select the correct statement

Possible Answers

Selected	Possible Answer
	The electric field $\overset{\omega}{E}$ will be induced in the rod
	The electric potential will be highest at the centre of rod and decreases towards the ends
	The entire rod will be at the same potential
	The electric potential will be lowest at the centre of rod and increases towards the ends

Question

Q.9 A thin semicircular conducting ring of radius R is falling with its plane vertical in a horizontal magnetic field $\overset{\omega}{B}$ . At the position MNQ of ring, the speed of ring is v. Then, the potential difference developed across the ring will be

Possible Answers

Selected	Possible Answer
	$\pi R^2vB$ and point Q will be at higher potential
	Zero
	2RvB and point Q will be at higher potential
	$\frac{\pi R^2v}{B}$ and point M will be at higher potential

Question

Q.10 PQ is a straight wire, carrying an electric current due north. A conducting loop abcda is moving with the velocity v towards east. Then, the current induced in the loop will be

Possible Answers