MCQ
$10$ wires (same length, same area, same material) are connected in parallel and each has $1$ $\Omega$ resistance, then the equivalent resistance will be .............. $\Omega$
- A$10$
- B$1$
- ✓$0.1$
- D$0.001$
✓
Answer
Correct option: C.
$0.1$
c
(c) $R' = \frac{R}{n} = \frac{1}{{10}} = 0.1\Omega $
(c) $R' = \frac{R}{n} = \frac{1}{{10}} = 0.1\Omega $
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A current of $2\, amp$. flows in a long, straight wire of radius $2\, mm$. The intensity of magnetic field on the axis of the wire is
→Assertion : Electric appliances with metallic body; e.g. heaters, presses etc, have three pin connections, whereas an electric bulb has a two pin connection.
Reason : Three pin connections reduce heating of connecting cables.
Reason : Three pin connections reduce heating of connecting cables.
An object is placed in front of a thin convex lens of focal length $30\, cm $ and a plane mirror is placed $15\, cm$ behind the lens. If the final image of the object coincides with the object, the distance of the object from the lens is.....$cm$
→The matter$-$wave picture of electromagnetic wave/radiation elegantly incorporated the:
→The ionic bond is absent in
A helium nucleus makes a full rotation in a circle of radius $0.8$ metre in two seconds. The value of the magnetic field $B$ at the centre of the circle will be
→Resistors of $1$, $2$, $ohm$ are connected in the form of a triangle. If a $1.5\, volt$ cell of negligible internal resistance is connected across $3\, ohm$ resistor, the current flowing through this resistance will be ................ $amp$
→In the given figure light is incident at an angle $\theta$ with the normal to a plane containing two slits of separation $d$. Select the expression that correctly describes the positions of the interference maxima in terms of the incoming angle $\theta$ and outgoing angle $\phi$.
→$A$ circular planar wire loop is dipped in a soap solution and after taking it out, held with its plane vertical in air. Assuming thickness of film at the top very small, as sunlight falls on the soap film, & observer receive reflected light
→The decay constant $\lambda $ of the radioactive sample is the probability of decay of an atom in unit time, then
→