# Recent content by Rohan1997

thanks :)
3. ### Diffraction orders of grazing incidence

hmm that's interesting, did you take in to account the lattice surface structural constant into account?
4. ### Uncertainty calculation

Homework Statement My homework question says: the uncertainty in length 1 is +/- 0.1 and in length 2 is +/- 0.1 : calculate the percentage uncertainty in V where V L1-L2 is 30 Homework Equations V= (1/(L1-L2))^0.5 where L is the length[/B] The Attempt at a Solution So what I did was...
5. ### Fiducial marker in SHM systems

Homework Statement Where would be the perfect place to place a fiducial marker in a: mass on a spring system (vertical) and a simple pendulum? Homework Equations The Attempt at a Solution My teacher told me that for a simple pendulum it would be below the bob at equillibrium position...
6. ### Capacitor discharge

Could someone explain to me how a capacitor discharges through another capacitor of different capacitance. Why does the voltage on the second capacitor have to equal the voltage on the first capacitor after the discharge. Please explain the concept to me in simple terms, do not go into...
7. ### Electromagnetic induction of a wire in a complete circuit

The current from my example also produces a magnetic field, how would I work out which way the field acts, and would this field cause motion in another direction?
8. ### Electromagnetic induction of a wire in a complete circuit

I think I get it now, so right hand rule is also conventional current, this makes a lot more sense and I see now that because of my example right hand HAS to be conventional current as well. Thanks for the help :) I think I was confused because I've been taught to use the right hand rule to...
9. ### Electromagnetic induction of a wire in a complete circuit

thanks for the help :)
10. ### Electromagnetic induction of a wire in a complete circuit

ahh so the current creats a magnetic field to move the wire to the left, this makes a lot more sense now thanks :) so two forces are created, one to the left and one to the right, but th onr to the right is much smaller than that to the left?
11. ### Electromagnetic induction of a wire in a complete circuit

I believe you've got conventional current and actual current mixed up mate...

yeah
13. ### How does an electron decide when to de-excite?

It's spontaneous
14. ### Electromagnetic induction of a wire in a complete circuit

Say for you had a wire in a complete circuit inside a magnetic field (pointing inwards) perpendicular to the wire. You move the wire across (to the right) , cutting lines of flux, this induces a current in the wire. The induced current acts upwards using the dynamo rule (thumb is motion...
15. ### Absolute magnitude and luminosity

Thank you this has filled the gap in my knowledge :)