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...
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...
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...
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?
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...
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?
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...