Generate Quiz 6A1827D2CDD80

λ = v / f

We obtain 1 x 105 m, or 100 km, by entering the speed of light, or 3 x 108 m/s, as v and 3 x 103 Hz, as f.

Charge × Potential Difference = Work (Energy) 1.602 × 10⁻¹⁹ C) × (1 V) = 1.602 × 10⁻¹⁹ J is the energy.

This question is a high-yield concept because it has been asked repeatedly in other papers.

The test charge does not generate the external electric field. Since the external electric field’s effect on the test charge is altered by the presence or absence of the test charge as well as by altering its magnitude, the external electric field at “P remains the same” is unaffected.

Height = h = 10 m

Gravitational acceleration = g = 9.8 m/s²

Speed = v =?

The formula

The speed of efflux through the leak can be ascertained by applying Torricelli’s law, which states that the following equation provides the speed of efflux of a fluid through an opening:

v = √2gh

= √2 × 9.8 × 10.

v = 14 m/s

Magnetic flux ΦB = BAcos
Alternatively, we can say that ΦB = B.A. since it is a dot product.

where A is the area vector and B is the magnetic field vector.
A dot product’s answer is always a scalar. Therefore, choice A is the right one.