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.
1 Rates listed in decimal form (5%=.05) : 2  Rate = Nominal annual coupon interest rate. 3  Yield = Annual yield to maturity. 4  Price = Price of security as a percent of par value (but without the % or $ sign, so if $1,000 par-value bond is selling for $857.30, then the corresponding percentage value is 85.73) .