Download App

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

Bihar BoardEnglish MediumSTD 12 SciencePhysicsHeating and Chemical Effect of Current1 Mark
Question

Two resistors whose value are in ratio 2 : 1 are connected in parallel with one cell.  Then ratio of power dissipated is

(a) 2 : 1

(b) 4 : 1

(c) 1 : 2    

(d) 1 : 1
✓

Answer

(c) 1 : 2    

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 [1M]" from Heating and Chemical Effect of Current→Heating and Chemical Effect of Current — all question types→Physics STD 12 Science question papers→Bihar Board STD 12 Science question papers→Bihar Board question paper generator→

Similar questions

A double convex thin lens made of glass (refractive index  μ = 1.5) has both radii of curvature of magnitude 20 cm. Incident light rays parallel to the axis of the lens will converge at a distance L such that

(a) L = 20 cm

(b) L = 10 cm

(c) L = 40 cm

(d) L = 20 / 3 cm
→
In an AC series circuit, the instantaneous current is zero when the instantaneous voltage is maximum. Connected to the source may be a:
  1. Pure inductor.
  2. Pure capacitor.
  3. Pure resistor.
  4. Combination of an inductor and a capacitor.
→

The energy of a charged capacitor resides in

(a) The electric field only

 

(b) The magnetic field only

(d) Neither in electric nor magnetic field

(d) Neither in electric nor magnetic field
→
Let $\text{E}_\text{n}=\frac{-1}{8\in_0^2}\frac{\text{me}^4}{\text{n}^2\text{h}^2}$ be the energy of the nth level of H-atom. If all the H-atoms are in the ground state and radiation of frequency $\frac{(\text{E}_2-\text{E}_1)}{\text{h}}$ falls on it:
→
In the given circuit what is the potential drop across resistance?
Image
→

Assertion   : The following circuit represents 'OR' gate

Reason     : For the above circuit Y =

(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.

(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.

(c) If assertion is true but reason is false.

(d) If the assertion and reason both are false.

→
If distance between two magnetic poles of strength (1 A-m) is 1 metre, then magnitude of force acting between them is:
→
To convert galvanometer into voltmeter one should connect:
→
Which of the following is correct for resistance of a material ?
→
In an AC generator, a coil with N turns, all of the same area A and total resistance R, rotates with frequency 1rad/ s in a magnetic field B. The maximum value of emf generated in the coil is:
→