Question

Given three equal resistors, how many different combination of all the three resistors can be made

(a) Six

(b) Five

(c) Four

(d) Three

Answer

(c) Four

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

Similar questions

If the magnification of optical instrument is negative, then the image will always be formed :

The radius of the orbital of electron in the hydrogen atom 0.5 Å. The speed of the electron is 2 . Then the current in the loop due to the motion of the electron is

(a) 1 mA 

(b) 1.5 mA

(c) 2.5 mA

(d) 1.5  

Name of the India's first nuclear reactor is

(a) RAMBHA

(b) MENAKA

(c) URVASI

(d) APSARA

Which one is correct relation for thermionic emission

(a)  

(b)  

(c)  

(d)  

Which source is associated with a line emission spectrum?

When a ray of light emerges from a block of glass, the critical angle is

(a) Equal to the angle of reflection

(b) The angle between the refracted ray and the normal

(c) The angle of incidence for which the refracted ray travels along the glass-air boundary

(d) The angle of incidence

The image formed behind a mirror and a virtual image:

The charges on two sphere are +7mC and – 5mC respectively. They experience a force F. If each of them is given and additional charge of – 2mC, the new force of attraction will be

(a) F

(b) F / 2

(c) F/ 

(d) 2F

The state of the energy gained by valance electrons when the temperature is raised or when electric field is applied is called as

(a) Valance band

(b) Conduction band

(c) Forbidden band

(d) None of these

Energy of the electron in nth orbit of hydrogen atom is given by . The amount of energy needed to transfer electron from first orbit to third orbit is

(a) 13.6 eV

(b) 3.4 eV

(c) 12.09 eV

(d) 1.51 eV