Download App

Heating and Chemical Effect of Current — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsHeating and Chemical Effect of Current1 Mark
MCQ
The $V-i$ graphs $A$ and $B$ drawn for two voltameters. Identify each graph
  • ✓
    $A$ for water voltameter and $B$ for $Cu$ voltameter
  • B
    $A$ for $Cu$ voltameter and $B$ for water voltameter
  • C
    Both $A$ and $B$ represents $Cu$ voltameter
  • D
    None of these
✓

Answer

Correct option: A.
$A$ for water voltameter and $B$ for $Cu$ voltameter
$A$ for water voltameter and $B$ for $Cu$ voltameter

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 Heating and Chemical Effect of Current→Heating and Chemical Effect of Current — all question types→Physics STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Similar questions

If a photon has velocity $c$ and frequency $n$, then which of following represents its wavelength
→
Electrons with energy 80 keV are incident on the tungsten target of an X-ray tube. K shell electrons of tungsten have ionization energy 72.5 keV. X-rays emitted by the tube contain only(a) A continuous X-ray spectrum (Bremsstrahlung) with a minimum wavelength of  ~ 0.155Å(b) A continuous X-ray spectrum (Bremsstrahlung] with all wavelengths(c) The characteristic X-rays spectrum of tungsten(d) A continuous X-ray spectrum (Bremsstrahlung) with a minimum wavelength of ~ 0.155Å and the characteristic X-ray spectrum of tungsten
 
 
 
 
→
A battery of e.m.f. 3 volt and internal resistance 1.0 ohm is connected in series with copper voltameter. The current flowing in the circuit is 1.5 amperes. The resistance of voltameter will be(a) Zero(b) 1.0 ohm(c) 1.5 ohm(d) 2.0 ohm
       
→
Which of the following are suitable for the fusion process(a) Heavy nuclei(b) Light nuclei(c) Atom bomb(d) Radioactive decay
       
→
The molar heat capacity of oxygen gas at STP is nearly 2.5R. As the temperature is increased, it gradually increases and approaches 3.5R. The most appropriate reason for this behaviour is that at high temperatures:
  1. Oxygen does not behave as an ideal gas.
  2. Oxygen molecules dissociate in atoms.
  3. The molecules collide more frequently.
  4. Molecular vibrations gradually become effective.
→
An electric bulb illuminates a plane surface. The intensity of illumination on the surface at a point $2 m$ away from the bulb is $5 \times 10^{-4}$ phot $($lumen$/cm^2)$. The line joining the bulb to the point makes an angle of $60^{\circ}$ with the normal to the surface. The intensity of the bulb in candela is
→
A conducting sphere of radius 10cm is charged 10μC. Another uncharged sphere of radius 20 cm is allowed to touch it for some time. After that if the sphere are separated, then surface density of charges, on the spheres will be in the ratio of(a) 1 : 4   (b) 1 : 3(c) 2 : 1    (d) 1 : 1
       
→
In a CRT the acceleration of electrons is controlled by changing ________ between the cathode and anode:
→
Two electric bulbs (60W and 100W respectively) are connected in series. The current passing through them is(a) More in 100W bulb(b) More in 60W bulb(c) Same in both(d) None of these
       
→
Current in the circuit will be
→