A. Has direction 45° with an x-axis
B. Has magnitude 2
C. Has magnitude 2 and direction °=45° with a y-axis
D. Has magnitude -2
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A. 1
B. 2
C. 3
D. Infinite
A. Vector
B. Position Vector
C. Vector in the direction at angle θ with an x-axis
D. The unit vector in the direction at angle θ with an x-axis
A. 1
B. 2
C. 3
D. 4
A. Polar coordinate system
B. Cartesian coordinate system
C. Cylindrical coordinate system
D. Spherical coordinate system
A. X-axis
B. Normal on a surface
C. Y-axis
D. Z-axis
A. Dimensionless
B. Dimensional scalar
C. Negative
D. All A, B and C are correct
A. One angle
B. Two angle
C. Three angle
D. No angle
A. Commutative law
B. Distributive law
C. Associative law
D. All given laws in A, B and C
A. Its electric field
B. Its coils
C. Its magnetic field
D. Both electric and magnetic fields
