272229
Two points \(P\) and \(Q\) are maintained at the potentials of 10 V and -4 V , respectively. The work done in moving 100 electrons from \(P\) to \(Q\) is:
272230
A ball of mass 1 g carrying a charge \(10^{-8} \mathrm{C}\) moves from a point \(A\) at potential 600 V to a point \(B\) at zero potential.
The change in its K.E. is
1 \(-6 \times 10^{-6} \mathrm{erg}\)
2 \(-6 \times 10^{-6} \mathrm{~J}\)
3 \(6 \times 10^{-6} \mathrm{~J}\)
4 \(6 \times 10^{-6} \mathrm{erg}\)
Explanation:
(c) As work is done by the field, K.E. of the body increases by K.E. \(=W=q\left(V_A-V_B\right)=10^{-8}(600-0)=\) \(6 \times 10^{-6} \mathrm{~J}\)
NCERT Page-54/N - 47
Electrostatic Potentials and Capacitance
272231
A point charge is kept at the centre of metallic insulated spherical shell. Then
1 electric fieldout side the sphere is zero
2 electric field inside the sphere is zero
3 net induced charge on the sphere is zero
4 electric potential inside the sphere is zero
Explanation:
(c)
NCERT Page-54/N - 47
Electrostatic Potentials and Capacitance
272226
\(\mathrm{A}, \mathrm{B}\) and C are three points in a uniform electric field. The electric potential is
1 maximum at B
2 maximum at\(C\)
3 same at all the three points\(\mathrm{A}, \mathrm{B}\) and C
4 maximumat \(A\)
Explanation:
(a) Potential at \(B, V_B\) is maximum, \(\mathrm{V}_{\mathrm{B}}>\mathrm{V}_{\mathrm{C}}>\mathrm{V}_{\mathrm{A}}\) As in the direction of electric field potential decreases.
272229
Two points \(P\) and \(Q\) are maintained at the potentials of 10 V and -4 V , respectively. The work done in moving 100 electrons from \(P\) to \(Q\) is:
272230
A ball of mass 1 g carrying a charge \(10^{-8} \mathrm{C}\) moves from a point \(A\) at potential 600 V to a point \(B\) at zero potential.
The change in its K.E. is
1 \(-6 \times 10^{-6} \mathrm{erg}\)
2 \(-6 \times 10^{-6} \mathrm{~J}\)
3 \(6 \times 10^{-6} \mathrm{~J}\)
4 \(6 \times 10^{-6} \mathrm{erg}\)
Explanation:
(c) As work is done by the field, K.E. of the body increases by K.E. \(=W=q\left(V_A-V_B\right)=10^{-8}(600-0)=\) \(6 \times 10^{-6} \mathrm{~J}\)
NCERT Page-54/N - 47
Electrostatic Potentials and Capacitance
272231
A point charge is kept at the centre of metallic insulated spherical shell. Then
1 electric fieldout side the sphere is zero
2 electric field inside the sphere is zero
3 net induced charge on the sphere is zero
4 electric potential inside the sphere is zero
Explanation:
(c)
NCERT Page-54/N - 47
Electrostatic Potentials and Capacitance
272226
\(\mathrm{A}, \mathrm{B}\) and C are three points in a uniform electric field. The electric potential is
1 maximum at B
2 maximum at\(C\)
3 same at all the three points\(\mathrm{A}, \mathrm{B}\) and C
4 maximumat \(A\)
Explanation:
(a) Potential at \(B, V_B\) is maximum, \(\mathrm{V}_{\mathrm{B}}>\mathrm{V}_{\mathrm{C}}>\mathrm{V}_{\mathrm{A}}\) As in the direction of electric field potential decreases.
272229
Two points \(P\) and \(Q\) are maintained at the potentials of 10 V and -4 V , respectively. The work done in moving 100 electrons from \(P\) to \(Q\) is:
272230
A ball of mass 1 g carrying a charge \(10^{-8} \mathrm{C}\) moves from a point \(A\) at potential 600 V to a point \(B\) at zero potential.
The change in its K.E. is
1 \(-6 \times 10^{-6} \mathrm{erg}\)
2 \(-6 \times 10^{-6} \mathrm{~J}\)
3 \(6 \times 10^{-6} \mathrm{~J}\)
4 \(6 \times 10^{-6} \mathrm{erg}\)
Explanation:
(c) As work is done by the field, K.E. of the body increases by K.E. \(=W=q\left(V_A-V_B\right)=10^{-8}(600-0)=\) \(6 \times 10^{-6} \mathrm{~J}\)
NCERT Page-54/N - 47
Electrostatic Potentials and Capacitance
272231
A point charge is kept at the centre of metallic insulated spherical shell. Then
1 electric fieldout side the sphere is zero
2 electric field inside the sphere is zero
3 net induced charge on the sphere is zero
4 electric potential inside the sphere is zero
Explanation:
(c)
NCERT Page-54/N - 47
Electrostatic Potentials and Capacitance
272226
\(\mathrm{A}, \mathrm{B}\) and C are three points in a uniform electric field. The electric potential is
1 maximum at B
2 maximum at\(C\)
3 same at all the three points\(\mathrm{A}, \mathrm{B}\) and C
4 maximumat \(A\)
Explanation:
(a) Potential at \(B, V_B\) is maximum, \(\mathrm{V}_{\mathrm{B}}>\mathrm{V}_{\mathrm{C}}>\mathrm{V}_{\mathrm{A}}\) As in the direction of electric field potential decreases.
272229
Two points \(P\) and \(Q\) are maintained at the potentials of 10 V and -4 V , respectively. The work done in moving 100 electrons from \(P\) to \(Q\) is:
272230
A ball of mass 1 g carrying a charge \(10^{-8} \mathrm{C}\) moves from a point \(A\) at potential 600 V to a point \(B\) at zero potential.
The change in its K.E. is
1 \(-6 \times 10^{-6} \mathrm{erg}\)
2 \(-6 \times 10^{-6} \mathrm{~J}\)
3 \(6 \times 10^{-6} \mathrm{~J}\)
4 \(6 \times 10^{-6} \mathrm{erg}\)
Explanation:
(c) As work is done by the field, K.E. of the body increases by K.E. \(=W=q\left(V_A-V_B\right)=10^{-8}(600-0)=\) \(6 \times 10^{-6} \mathrm{~J}\)
NCERT Page-54/N - 47
Electrostatic Potentials and Capacitance
272231
A point charge is kept at the centre of metallic insulated spherical shell. Then
1 electric fieldout side the sphere is zero
2 electric field inside the sphere is zero
3 net induced charge on the sphere is zero
4 electric potential inside the sphere is zero
Explanation:
(c)
NCERT Page-54/N - 47
Electrostatic Potentials and Capacitance
272226
\(\mathrm{A}, \mathrm{B}\) and C are three points in a uniform electric field. The electric potential is
1 maximum at B
2 maximum at\(C\)
3 same at all the three points\(\mathrm{A}, \mathrm{B}\) and C
4 maximumat \(A\)
Explanation:
(a) Potential at \(B, V_B\) is maximum, \(\mathrm{V}_{\mathrm{B}}>\mathrm{V}_{\mathrm{C}}>\mathrm{V}_{\mathrm{A}}\) As in the direction of electric field potential decreases.
