Related Questions

যদি 1 Coulomb মানের দুটি আধান বাতাসে পরস্পরের সাথে 1 meter দূরত্ব রেখে অবস্থান করে, তবে তাদের মধ্যবর্তী বল কত ?
A 2.2 N
B 8.85 × 1012 N
C 1.6× 1019N
D 9× 109 N
একটি কন্ডেনসারের দুটি সমান্তরাল প্লেটের মধ্যে 600 ভোল্টের বিভব দেয়া হল। প্লেট দুটির মধ্যে দূরত্ব 3mm । 2×106 m/s       1.6×10-19 coulomb]
A 0.1T
Find the current (in A) when a charge of 500 Coulomb flows in 25 seconds.
A 12500
B 20
C 40
D 6250
If two coulomb of charge flows through any cross-section of a conductor in one second, what will be the current flowing through it?
A 1 Ampere
B 1\/2 Ampere
C 1\/4 Ampere
D 2 Amperes
The angle that Coulomb’s failure envelope makes with the horizontal is called
A cohesion
B angle of internal friction
C angle of repose
D none of the above
i coulomb চার্জ কতটি ইলেকট্রনের চার্জের সমান?
A 3.00 x 108
B 9.00 x 109
C 6.25 1018
D 6.02 x 1023
The radius of a friction circle for a shaft rotating inside a bearing is (where r = Radius of shaft and $$\tan \varphi $$  = Coefficient of friction between the shaft and bearing)
A $${\text{r}}\sin \varphi $$
B $${\text{r}}\cos \varphi $$
C $${\text{r}}\tan \varphi $$
D $$\frac{{\text{r}}}{2}\cos \varphi $$
The dynamic friction is the friction experienced by a body, when the body
A is in motion
B is at rest
C just begins to slide over the surface of the other body
D none of the mentioned
A friction circle is a circle drawn when a journal rotates in a bearing. Its radius depends upon the coefficient of friction and the
A Magnitude of the forces on journal
B Angular velocity of journal
C Clearance between journal and bearing
D Radius of journal
For a shoe brake, the equivalent coefficient of friction is equal to (where $$\mu $$ = Actual coefficient of friction and $$\theta $$ = Semi-block angle)
A $$\frac{{2\mu \sin \theta }}{{\theta + \sin \theta }}$$
B $$\frac{{\mu \sin \theta }}{{2\theta + \sin 2\theta }}$$
C $$\frac{{4\mu \sin \theta }}{{\theta + \sin \theta }}$$
D $$\frac{{4\mu \sin \theta }}{{2\theta + \sin 2\theta }}$$

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