Electric lines of force about a positive point charge and negative point charge are respectively.
(A) circular, clockwise
(B) radially outward, radially inward
(C) radially inward, radially outward
(D) circular, anticlockwise
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How much positive and negative charge is present in 1 g of water? How many electrons are present in it?
Molecular mass of water is 18 gram, that means the number of molecules in 18 gram of water is 6.02 × 1023 ∴ Number of molecules in l gm of water...
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The force exerted by an electric field on a charge of +10 µC at a point is 16 × 10^-4 N. What is the intensity of the electric field at the point?
Given: q = 10 µC = 10 × 10-6 C, F = 16 × 10-4 N To find: Electric field intensity (E) Formula: E = \(\frac{F}{q}\) Calculation: From formula, E = \(\frac{16\times10^{-4}}{10\times10^{-6}}\) = 160 N/C
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If a charge is moved against the Coulomb force of an electric field, (A) work is done by the electric field
(B) energy is used from some outside source
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The electric field intensity at a point 2 m from an isolated point charge is 500 N/C. The electric potential at the point is
Correct option is: (D) 1000 V
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A force of 2.25 N acts on a charge of 15 × 10^-4 C. Calculate the intensity of electric field at that point.
Correct option is: (A) 1500 NC-1
2 Answers 1 views
A point charge q produces an electric field of magnitude 2 N C^-1 at a point distant 0.25 m from it. What is the value of charge?
Correct option is: (A) 1.39 × 10-11 C
2 Answers 1 views
Define following terms in case of magnetic maps: i. Isomagnetic charts ii. Isodynamic lines iii. Isogonic lines iv. Aclinic lines
i. Isomagnetic charts: Magnetic maps drawn by joining places with the same value of a particular element are called isomagnetic charts. ii. Isodynamic lines: Lines joining the places of equal horizontal...
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The charge of alpha particles is A) positive B) negative
Correct option is A) positive
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Pressure = ………… A) Force B) Force x area C) Area / force D) Force / area
D) Force / area
2 Answers 1 views
A charged particle can be deflected by electric and magnetic filed both The electric force`oversetrarrF_(e) =qoversetrarrE` and magnetic force `overse
Correct Answer - `B`
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