Download App

Electrostatic Potential and Capacitance — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsElectrostatic Potential and Capacitance1 Mark
MCQ
For any charge configuration, equipotential surface through a point is $......$ to electric field at that point.
  • A
    Perpendicular.
  • B
    Normal.
  • C
    Parallel.
  • ✓
    Both $a$ and $b$.
✓

Answer

Correct option: D.
Both $a$ and $b$.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from Electrostatic Potential and Capacitance→Electrostatic Potential and Capacitance — all question types→Physics STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

In a mixture of $\mathrm{H}-\mathrm{He}^{+}$gas ( $\mathrm{He}^{+}$is singly ionized $\mathrm{He}$ atom), $\mathrm{H}$ atoms and $\mathrm{He}^{+}$ions are excited to their respective first excited states. Subsequently, $\mathrm{H}$ atoms transfer their total excitation energy to $\mathrm{He}^{+}$ions (by collisions). Assume that the Bohr model of atom is exactly valid.

$1.$ The quantum number $\mathrm{n}$ of the state finally populated in $\mathrm{He}^{+}$ions is

$(A)$ $2$ $(B)$ $3$ $(C)$ $4$ $(D)$ $5$

$2.$ The wavelength of light emitted in the visible region by $\mathrm{He}^{+}$ions after collisions with $\mathrm{H}$ atoms is

$(A)$ $6.5 \times 10^{-7} \mathrm{~m}$ $(B)$ $5.6 \times 10^{-7} \mathrm{~m}$

$(C)$ $4.8 \times 10^{-7} \mathrm{~m}$ $(D)$ $4.0 \times 10^{-7} \mathrm{~m}$

$3.$ The ratio of the kinetic energy of the $\mathrm{n}=2$ electron for the $\mathrm{H}$ atom to that of $\mathrm{He}^{+}$ion is

$(A)$ $\frac{1}{4}$ $(B)$ $\frac{1}{2}$ $(C)$ $1$ $(D)$ $2$

Give the answer question $1,2$ and $3.$

→
A prism of refractive index $\sqrt 2$ has refracting angle $60^o$. In order that a ray suffers  minimum deviation it should be incident at an angle.......$^o$
→
A resistor and a capacitor are in series across a $20V$ ac source. Circuit impedance is $4.33\text{k}\Omega$ Current flow in the circuit is.
→
The ionisation potential of hydrogen atom is $13.6\, volt$. The energy required to remove an electron in the $n = 2$ state of the hydrogen atom is.....$eV$
→
A thin prism ${P_1}$ with angle $6^o $ and made from glass of refractive index $1.54$ is combined with another thin prism $P_2$ of refractive index $1.72$ to produce dispersion without deviation. The angle of prism ${P_2}$ will be
→
$A$ vessel $A$ baa volume $V$ and a vessel $B$ has volume $2 V .$ Both contain some water which has a constant volume. The pressure in the space above water is $p_a$ for veesel $A$ and $p_b$ for vessel $B$.
→
The binding energy of Helium nucleus is $28\ Mev$. What is it's average binding energy per nucleon?
→
A long, straight wire of radius R carries a current distributed uniformly over its cross section. T he magnitude of the magnetic field is:
→
The effect of increase in temperature on the number of electrons in conduction band $\left( n _{ e }\right)$ and resistance of a semiconductor will be as:
→
With the help of potentiometer, we can determine the value of emf of a given cell. The sensitivity of the potentiometer is

$(A)$ directly proportional to the length of the potentiometer wire

$(B)$ directly proportional to the potential gradient of the wire

$(C)$ inversely proportional to the potential gradient of the wire

$(D)$ inversely proportional to the length of the potentiometer wire

Choose the correct option for the above statements:

→