Surface Resistivity and Surface Resistance Measurements Using a Concentric Ring Probe Technique L D U electrodes material D (a) Sample #1. L D/2 U electrodes material D/2 (b) Sample #2. Figure 2: Current density. When the voltage U is kept constant, the current density for the thin and the thick bar is the same. The electric current density is often expressed by: J = I
The current interest rate on a 20 year treasury bond is 3.06%. The rate on the savings bond is 0.44% higher than the rate of the 20 Year Treasury bond. Given that US Savings Bonds are just as safe as the 20 year Treasury, getting almost a half-percent more yield is great.
If they are redeemed after five years, the last three months' worth of interest is forfeited; however, after five years they can be redeemed with no penalty. The annual interest rate for EE bonds purchased between May 1, 2014 and Oct. 31, 2014 is 0.5%. Series I bonds are sold at face value and mature after 30 years. Redemption rules are the same with Series I bonds as Series EE bonds. Series I bonds earn interest at a rate of 1.94% through Oct. 31, 2014.