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  2. Current ratio: What it is and how to calculate it - AOL

    www.aol.com/finance/current-ratio-calculate...

    The formula is: Current ratio: Current assets / Current liabilities. Sample current ratios. Let’s look at some examples of companies with high and low current ratios. You can find these numbers ...

  3. Current ratio - Wikipedia

    en.wikipedia.org/wiki/Current_ratio

    The current ratio is a liquidity ratio that measures whether a firm has enough resources to meet its short-term obligations. It compares a firm's current assets to its current liabilities, and is expressed as follows:-. The current ratio is an indication of a firm's liquidity. Acceptable current ratios vary from industry to industry. [1]

  4. Common-mode rejection ratio - Wikipedia

    en.wikipedia.org/wiki/Common-mode_rejection_ratio

    Common-mode rejection ratio. In electronics, the common mode rejection ratio ( CMRR) of a differential amplifier (or other device) is a metric used to quantify the ability of the device to reject common-mode signals, i.e. those that appear simultaneously and in-phase on both inputs. An ideal differential amplifier would have infinite CMRR ...

  5. Current divider - Wikipedia

    en.wikipedia.org/wiki/Current_divider

    The formula describing a current divider is similar in form to that for the voltage divider. However, the ratio describing current division places the impedance of the considered branches in the denominator, unlike voltage division, where the considered impedance is in the numerator. This is because in current dividers, total energy expended is ...

  6. Damping - Wikipedia

    en.wikipedia.org/wiki/Damping

    Underdamped spring–mass system with ζ < 1. In physical systems, damping is the loss of energy of an oscillating system by dissipation. [1] [2] Damping is an influence within or upon an oscillatory system that has the effect of reducing or preventing its oscillation. [3] Examples of damping include viscous damping in a fluid (see viscous drag ...

  7. Current transformer - Wikipedia

    en.wikipedia.org/wiki/Current_transformer

    The rated secondary current is normally standardized at 1 or 5 amperes. For example, a 4000:5 CT secondary winding will supply an output current of 5 amperes when the primary winding current is 4000 amperes. This ratio can also be used to find the impedance or voltage on one side of the transformer, given the appropriate value at the other side.

  8. Positive and negative predictive values - Wikipedia

    en.wikipedia.org/wiki/Positive_and_negative...

    The positive predictive value (PPV), or precision, is defined as = + = where a "true positive" is the event that the test makes a positive prediction, and the subject has a positive result under the gold standard, and a "false positive" is the event that the test makes a positive prediction, and the subject has a negative result under the gold standard.

  9. List of unsolved problems in mathematics - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    Many mathematical problems have been stated but not yet solved. These problems come from many areas of mathematics, such as theoretical physics, computer science, algebra, analysis, combinatorics, algebraic, differential, discrete and Euclidean geometries, graph theory, group theory, model theory, number theory, set theory, Ramsey theory, dynamical systems, and partial differential equations.