267827 Statement A: If an electron travels along the direction of electric field it gets accelerated
Statement B: If a proton travels along the direction of electric field it gets retarded

267828 A:C harge cannot exist without mass but mass can exist without charge.
B : C harge is invariant but mass is variant with velocity
C : C harge is conserved but mass alone may not be conserved.

267829 A particle of mass \(m\) and charge \(q\) is fastened to one end of a string fixed at point 0 . The whole system lies on a frictionless horizontal plane. Initially, the mass is at rest at A. A uniform electric field in the direction shown is then switched on. Then

267830 A conducting sphere \(A\) of radius \(a\), with charge \(Q\), is placed concentrically inside a conducting shell \(B\) of radius \(b\). \(B\) is earthed. \(C\) is the common centre of the \(A\) and \(B\)

p) The field at a distance \(r\) from \(C\), where \(a \leq r \leq b\), is \(k \frac{Q}{r^{2}}\)
\(q\) ) The potential at a distancer from \(C\), where \(a \leq r \leq b\), is \(k \frac{Q}{r}\)
r) The potential difference between \(A\) and \(B\) is \(k Q\left(\frac{1}{a}-\frac{1}{b}\right)\)
s) The potential at a distancer from \(C\), where
\(a \leq r \leq b \text {, is } k Q\left(\frac{1}{r}-\frac{1}{b}\right) \)
Choose the correct answer

267827 Statement A: If an electron travels along the direction of electric field it gets accelerated
Statement B: If a proton travels along the direction of electric field it gets retarded

267828 A:C harge cannot exist without mass but mass can exist without charge.
B : C harge is invariant but mass is variant with velocity
C : C harge is conserved but mass alone may not be conserved.

267829 A particle of mass \(m\) and charge \(q\) is fastened to one end of a string fixed at point 0 . The whole system lies on a frictionless horizontal plane. Initially, the mass is at rest at A. A uniform electric field in the direction shown is then switched on. Then

267830 A conducting sphere \(A\) of radius \(a\), with charge \(Q\), is placed concentrically inside a conducting shell \(B\) of radius \(b\). \(B\) is earthed. \(C\) is the common centre of the \(A\) and \(B\)

p) The field at a distance \(r\) from \(C\), where \(a \leq r \leq b\), is \(k \frac{Q}{r^{2}}\)
\(q\) ) The potential at a distancer from \(C\), where \(a \leq r \leq b\), is \(k \frac{Q}{r}\)
r) The potential difference between \(A\) and \(B\) is \(k Q\left(\frac{1}{a}-\frac{1}{b}\right)\)
s) The potential at a distancer from \(C\), where
\(a \leq r \leq b \text {, is } k Q\left(\frac{1}{r}-\frac{1}{b}\right) \)
Choose the correct answer

267827 Statement A: If an electron travels along the direction of electric field it gets accelerated
Statement B: If a proton travels along the direction of electric field it gets retarded

267828 A:C harge cannot exist without mass but mass can exist without charge.
B : C harge is invariant but mass is variant with velocity
C : C harge is conserved but mass alone may not be conserved.

267829 A particle of mass \(m\) and charge \(q\) is fastened to one end of a string fixed at point 0 . The whole system lies on a frictionless horizontal plane. Initially, the mass is at rest at A. A uniform electric field in the direction shown is then switched on. Then

267830 A conducting sphere \(A\) of radius \(a\), with charge \(Q\), is placed concentrically inside a conducting shell \(B\) of radius \(b\). \(B\) is earthed. \(C\) is the common centre of the \(A\) and \(B\)

p) The field at a distance \(r\) from \(C\), where \(a \leq r \leq b\), is \(k \frac{Q}{r^{2}}\)
\(q\) ) The potential at a distancer from \(C\), where \(a \leq r \leq b\), is \(k \frac{Q}{r}\)
r) The potential difference between \(A\) and \(B\) is \(k Q\left(\frac{1}{a}-\frac{1}{b}\right)\)
s) The potential at a distancer from \(C\), where
\(a \leq r \leq b \text {, is } k Q\left(\frac{1}{r}-\frac{1}{b}\right) \)
Choose the correct answer

267827 Statement A: If an electron travels along the direction of electric field it gets accelerated
Statement B: If a proton travels along the direction of electric field it gets retarded

267828 A:C harge cannot exist without mass but mass can exist without charge.
B : C harge is invariant but mass is variant with velocity
C : C harge is conserved but mass alone may not be conserved.

267829 A particle of mass \(m\) and charge \(q\) is fastened to one end of a string fixed at point 0 . The whole system lies on a frictionless horizontal plane. Initially, the mass is at rest at A. A uniform electric field in the direction shown is then switched on. Then

267830 A conducting sphere \(A\) of radius \(a\), with charge \(Q\), is placed concentrically inside a conducting shell \(B\) of radius \(b\). \(B\) is earthed. \(C\) is the common centre of the \(A\) and \(B\)

p) The field at a distance \(r\) from \(C\), where \(a \leq r \leq b\), is \(k \frac{Q}{r^{2}}\)
\(q\) ) The potential at a distancer from \(C\), where \(a \leq r \leq b\), is \(k \frac{Q}{r}\)
r) The potential difference between \(A\) and \(B\) is \(k Q\left(\frac{1}{a}-\frac{1}{b}\right)\)
s) The potential at a distancer from \(C\), where
\(a \leq r \leq b \text {, is } k Q\left(\frac{1}{r}-\frac{1}{b}\right) \)
Choose the correct answer