# New post in Induction

## Proving $\sum_{k=1}^n\frac1{\sqrt k}<2\sqrt n$ by induction

November 28th, 2022

## Prove $\sum^n_{i=1} (2i-1)=n^2$ by induction

August 14th, 2022

## general formula using informal inductive reasoning

October 15th, 2022

July 30th, 2022

July 26th, 2022

## Constant current in inductor

December 6th, 2020

## Density of charge induced on a hollow sphere due to eccentric charge inside

December 10th, 2020

## Currents induced by rotation of a coil about magnetic field lines

November 3rd, 2020

March 16th, 2020

## How do inductors store energy?

February 29th, 2020

August 1st, 2022

March 25th, 2020

## Why doe we not get a shock on induction cooker?

January 29th, 2020

August 1st, 2022

## Magnetic Levitation : Confusion with Lenz's Law

January 9th, 2020

March 1st, 2020

August 1st, 2022

August 1st, 2022

May 28th, 2020

## How does the emf "know" what the magnetic flux is?

January 28th, 2020

## Measuring voltage drop from induced current

September 3rd, 2020

## If you are vacuuming your carpet and you wrap the cord around your body do you become a magnet?

September 18th, 2020

December 12th, 2020

## $3+33+\dots+33\ldots3={10^{n+1}-9^n-10\over 27}$

November 26th, 2020

## Prove by induction and recursion that $n!=n(n-1)(n-2)...(3)(2)(1).$

August 28th, 2020

August 1st, 2022

July 31st, 2020

April 27th, 2020

## Proof that expression is integer

August 23rd, 2020

## How to prove $1 + 3 + 3^2 + ... + 3^{n-1} = (3^n - 1)/2$ by mathematical induction?

February 20th, 2021