Download App

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

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsHeating and Chemical Effect of Current1 Mark
MCQ
Two resistances $R_1$ and $R_2$ when connected in series and parallel with 120 V line, power consumed will be 25 W and 100 W respectively. Then the ratio of power consumed by $R_1$ to that consumed by $R_2$ will be
  • ✓
    1 : 1
  • B
    1 : 2
  • C
    2 : 1
  • D
    1 : 4
✓

Answer

Correct option: A.
1 : 1
(a) 1 : 1

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→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

Work done in moving a positive charge on an equipotential surface is
→
Brilliance of diamond is due to
→
When wavelength of incident photon is decreased then
→
The origin of $x$ and $y$ coordinates is the pole of a concave mirror of focal length $20\, cm$. The $x$ -axis is the optical axis with $x > 0$ being the real side of mirror. $A$ point object at the point $(25\, cm, 1\, cm)$ is moving with a velocity $10\, cm/s$ in positive $x$ -direction. The velocity of the image in $cm/s$ is approximately
→
In Young's double slit experiment the two slits are $0.6 \; mm$ distance apart. Interference pattern is observed on a screen at a distance $80 \; cm$ from the slits. The first dark fringe is observed on the screen directly opposite to one of the slits. The wavelength of light will be $\dots \; nm .$
→
Wavefront means
→
Dispersion of light is due to
→
Light enters at an angle of incidence in a transparent rod of refractive index n. For what value of the refractive index of the material of the rod the light once entered into it will not leave it through its lateral face whatsoever be the value of angle of incidence
→
The north pole of a long horizontal bar magnet is being brought closer to a vertical conducting plane along the perpendicular direction. The direction of the induced current in the conducting plane will be
→
In a parallel plate condenser, the radius of each circular plate is 12 cm and the distance between the plates is 5mm. There is a glass slab of 3mm thick and of radius 12 cm with dielectric constant 6 between its plates. The capacity of the condenser will be
→