Question
Which among the following is false?
✓
Answer
Coulomb force is a strong force. It can be shown that the Coulomb force between two electrons is $10^{43}$ times than gravitational force. All the other options are basic properties of Coulomb’s Law.
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
Refraction of light occurs:
In a Wheatstone's bridge all the four arms have equal resistance $R$. If the resistance of the galvanometer arm is also $R$, the equivalent resistance of the combination as seen by the battery is
→Carbon has __________ isotopes.
Identify the correct statement from below:
Two similar plano$-$convex lenses are combined together in three different ways as shown in the adjoining figure. The ratio of the focal lengths in three cases will be
→When two bar magnets are coaxially placed at some distance from each other, then no torque works because:
Two resistances of $400\Omega$ and $800\Omega$ are connected in series with $6$ volt battery of negligible internal resistance. A voltmeter of resistance $10,000\Omega$ is used to measure the potential difference across $400\Omega.$ The error in the measurement of potential difference in volts approximately is
→A convex lens is used to form real image of an object on a screen. It is observed that even when the positions of the object and that screen are fixed there are two positions of the lens to form real images. If the heights of the images are 4 cm and 9 cm respectively, the height of the object is(a) 2.25 cm(b) 6.00 cm(c) 6.50 cm(d) 36.00 cm
An electric heater is heated by de and ac respec- tively. The potential difference applied across the ends of heater for both ac and de is same. Heat gener- ated per second will be more:
If a 2 kW boiler is used everyday for 1 hour, then electrical energy consumed by boiler in thirty days is(a) 15 unit(b) 60 unit(c) 120 unit(d) 240 unit