A)
Find the electric gfield vector at p ( a, a, a ) due to three infinetly long lines of charges along the x- y and z axes respectively. The charge density i.e, charge per unit length of each wire is lamda.
29
Oct
Find the electric gfield vector at p ( a, a, a ) due to three infinetly long lines of charges along the x- y and z axes respectively. The charge density i.e, charge per unit length of each wire is lamda. a ) due to three infinetly long lines of charges along the x- y [...]
Two Carnot’s engines A and B are operated in series. The first one, A, receives heat at 800 K and rejects to a reservoir at temperature T. The second engine, B, receives the heat
28
Oct
Two Carnot’s engines A and B are operated in series. The first one, A, receives heat at 800 K and rejects to a reservoir at temperature T. The second engine, B, receives the heat A) B receives heat at 800 K and rejects to a reservoir at temperature T. The second engine receives the heat [...]
A lift performs the first part of its ascent with uniform acceleration, a, and the remaining with uniform retardation, 2a. If, t, is the time of ascent, the depth of the shaft is at^2/n. Find value of n.
18
Oct
A lift performs the first part of its ascent with uniform acceleration, a, and the remaining with uniform retardation, 2a. If, t, is the time of ascent, the depth of the shaft is at^2/n. Find value of n. 2a. If A lift performs the first part of its ascent with uniform acceleration A) and the [...]
1. The blood groups of 30 students of Class VIII are recorded as follows: A, B, O, O, AB, O, A, O, B, A, O, B, A, O, O, A, AB, O, A, A, O, O, AB, B, A, O, B, A, B, O. Represent this data in the form of a frequency distribution table. Which is the most common, and which is the rarest, blood group among these students?
17
Oct
1. The blood groups of 30 students of Class VIII are recorded as follows: A, B, O, O, AB, O, A, O, B, A, O, B, A, O, O, A, AB, O, A, A, O, O, AB, B, A, O, B, A, B, O. Represent this data in the form of a frequency distribution table. [...]
Two long parallel wires, AB and CD, carry equal currents in opposite directions. They lie in the x-y plane, parallel to the x-axis, and pass through the points (0,-a,0) and (0,a,0) respectively, Figure. The resultant magnetic field is:
17
Oct
Two long parallel wires, AB and CD, carry equal currents in opposite directions. They lie in the x-y plane, parallel to the x-axis, and pass through the points (0,-a,0) and (0,a,0) respectively, Figure. The resultant magnetic field is: 0) and (0 0) respectively A) AB and CD and pass through the points (0 carry equal [...]
A current I flows in a rectangularly shaped wire whose center lies at (x 0 ,0 , 0) and whose vertices are located at the point A(x 0 +d, −a, −b ),B (x 0 −d ,a ,−b), C(x 0 −d, a, +b), and D(x 0 +d,−a,+b) respectively. Assume that a, b, d <<x 0 . Find the magnitude of magnetic dipole moment vector of the rectangular wire frame in J/T. (Given: b = 10 m, I = 0.01 A, d = 4 m, a = 3 m.)
16
Oct
A current I flows in a rectangularly shaped wire whose center lies at (x 0 ,0 , 0) and whose vertices are located at the point A(x 0 +d, −a, −b ),B (x 0 −d ,a ,−b), C(x 0 −d, a, +b), and D(x 0 +d,−a,+b) respectively. Assume that a, b, d <<x 0 [...]
5. In Fig. 10.39, A, B, C and D are four points on a circle. AC and BD intersect at a point E such that ∠ BEC = 130° and ∠ ECD = 20°. Find angle BAC.
15
Oct
5. In Fig. 10.39, A, B, C and D are four points on a circle. AC and BD intersect at a point E such that ∠ BEC = 130° and ∠ ECD = 20°. Find angle BAC. 5. In Fig. 10.39 A) B C and D are four points on a circle. AC and BD [...]
1. In Fig. 10.36, A,B and C are three points on a circle with centre O such that angle BOC = 30° and angle AOB = 60°. If D is a point on the circle other than the arc ABC, find angle ADC.
15
Oct
1. In Fig. 10.36, A,B and C are three points on a circle with centre O such that angle BOC = 30° and angle AOB = 60°. If D is a point on the circle other than the arc ABC, find angle ADC. 1. In Fig. 10.36 A) B and C are three points on [...]
A lens of focal length f is placed in between an object and screen at a distance D. The lens forms two real images of object on the screen for two of its different positions, a
09
Oct
A lens of focal length f is placed in between an object and screen at a distance D. The lens forms two real images of object on the screen for two of its different positions, a A lens of focal length f is placed in between an object and screen at a distance D. The [...]
In figure, A, B and C are points on OP, OQ and OR respectively such that AB || PQ and AC || PR. Show that BC || QR.
04
Oct
In figure, A, B and C are points on OP, OQ and OR respectively such that AB || PQ and AC || PR. Show that BC || QR. A) B and C are points on OP In figure OQ and OR respectively such that AB || PQ and AC || PR. Show that BC || [...]